1990011520

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 384

約数和(自身を含む): 6027955200

約数和(自身を除く): 4037943680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 32, 35, 40, 46, 49, 56, 62, 64, 70, 80, 89, 92, 98, 112, 115, 124, 128, 140, 155, 160, 161, 178, 184, 196, 217, 224, 230, 245, 248, 280, 310, 320, 322, 356, 368, 392, 434, 445, 448, 460, 490, 496, 560, 620, 623, 640, 644, 712, 713, 736, 784, 805, 868, 890, 896, 920, 980, 992, 1085, 1120, 1127, 1240, 1246, 1288, 1424, 1426, 1472, 1519, 1568, 1610, 1736, 1780, 1840, 1960, 1984, 2047, 2170, 2240, 2254, 2480, 2492, 2576, 2759, 2848, 2852, 2944, 3038, 3115, 3136, 3220, 3472, 3560, 3565, 3680, 3920, 3968, 4094, 4340, 4361, 4480, 4508, 4960, 4984, 4991, 5152, 5518, 5635, 5696, 5704, 6076, 6230, 6272, 6440, 6944, 7120, 7130, 7360, 7595, 7840, 8188, 8680, 8722, 9016, 9920, 9968, 9982, 10235, 10304, 11036, 11270, 11392, 11408, 12152, 12460, 12880, 13795, 13888, 14240, 14260, 14329, 14720, 15190, 15680, 16376, 17360, 17444, 18032, 19313, 19840, 19936, 19964, 20470, 20608, 21805, 22072, 22540, 22816, 24304, 24920, 24955, 25760, 27590, 27776, 28480, 28520, 28658, 30380, 31360, 32752, 34720, 34888, 34937, 36064, 38626, 39872, 39928, 40940, 43610, 44144, 45080, 45632, 48608, 49840, 49910, 51520, 55180, 56960, 57040, 57316, 60760, 63457, 65504, 69440, 69776, 69874, 71645, 72128, 77252, 79744, 79856, 81880, 87220, 88288, 90160, 91264, 96565, 97216, 99680, 99820, 100303, 103040, 110360, 114080, 114632, 121520, 126914, 131008, 135191, 138880, 139552, 139748, 143290, 144256, 154504, 159712, 163760, 174440, 174685, 176576, 180320, 193130, 194432, 199360, 199640, 200606, 220720, 228160, 229264, 243040, 253828, 262016, 270382, 279104, 279496, 286580, 309008, 317285, 319424, 327520, 348880, 349370, 353152, 360640, 386260, 398720, 399280, 401212, 441440, 444199, 456320, 458528, 486080, 501515, 507656, 540764, 558208, 558992, 573160, 618016, 634570, 638848, 655040, 675955, 697760, 698740, 721280, 772520, 798560, 802424, 882880, 888398, 917056, 972160, 1003030, 1015312, 1081528, 1117984, 1146320, 1236032, 1269140, 1310080, 1351910, 1395520, 1397480, 1545040, 1597120, 1604848, 1765760, 1776796, 1834112, 2006060, 2030624, 2163056, 2220995, 2235968, 2292640, 2472064, 2538280, 2703820, 2791040, 2794960, 3090080, 3109393, 3194240, 3209696, 3553592, 4012120, 4061248, 4326112, 4441990, 4471936, 4585280, 5076560, 5407640, 5589920, 6180160, 6218786, 6419392, 7107184, 8024240, 8122496, 8652224, 8883980, 9170560, 10153120, 10815280, 11179840, 12360320, 12437572, 12838784, 14214368, 15546965, 16048480, 17304448, 17767960, 20306240, 21630560, 22359680, 24875144, 28428736, 31093930, 32096960, 35535920, 40612480, 43261120, 49750288, 56857472, 62187860, 64193920, 71071840, 86522240, 99500576, 124375720, 142143680, 199001152, 248751440, 284287360, 398002304, 497502880, 995005760, 1990011520]

約数ペア:

[(1, 1990011520), (2, 995005760), (4, 497502880), (5, 398002304), (7, 284287360), (8, 248751440), (10, 199001152), (14, 142143680), (16, 124375720), (20, 99500576), (23, 86522240), (28, 71071840), (31, 64193920), (32, 62187860), (35, 56857472), (40, 49750288), (46, 43261120), (49, 40612480), (56, 35535920), (62, 32096960), (64, 31093930), (70, 28428736), (80, 24875144), (89, 22359680), (92, 21630560), (98, 20306240), (112, 17767960), (115, 17304448), (124, 16048480), (128, 15546965), (140, 14214368), (155, 12838784), (160, 12437572), (161, 12360320), (178, 11179840), (184, 10815280), (196, 10153120), (217, 9170560), (224, 8883980), (230, 8652224), (245, 8122496), (248, 8024240), (280, 7107184), (310, 6419392), (320, 6218786), (322, 6180160), (356, 5589920), (368, 5407640), (392, 5076560), (434, 4585280), (445, 4471936), (448, 4441990), (460, 4326112), (490, 4061248), (496, 4012120), (560, 3553592), (620, 3209696), (623, 3194240), (640, 3109393), (644, 3090080), (712, 2794960), (713, 2791040), (736, 2703820), (784, 2538280), (805, 2472064), (868, 2292640), (890, 2235968), (896, 2220995), (920, 2163056), (980, 2030624), (992, 2006060), (1085, 1834112), (1120, 1776796), (1127, 1765760), (1240, 1604848), (1246, 1597120), (1288, 1545040), (1424, 1397480), (1426, 1395520), (1472, 1351910), (1519, 1310080), (1568, 1269140), (1610, 1236032), (1736, 1146320), (1780, 1117984), (1840, 1081528), (1960, 1015312), (1984, 1003030), (2047, 972160), (2170, 917056), (2240, 888398), (2254, 882880), (2480, 802424), (2492, 798560), (2576, 772520), (2759, 721280), (2848, 698740), (2852, 697760), (2944, 675955), (3038, 655040), (3115, 638848), (3136, 634570), (3220, 618016), (3472, 573160), (3560, 558992), (3565, 558208), (3680, 540764), (3920, 507656), (3968, 501515), (4094, 486080), (4340, 458528), (4361, 456320), (4480, 444199), (4508, 441440), (4960, 401212), (4984, 399280), (4991, 398720), (5152, 386260), (5518, 360640), (5635, 353152), (5696, 349370), (5704, 348880), (6076, 327520), (6230, 319424), (6272, 317285), (6440, 309008), (6944, 286580), (7120, 279496), (7130, 279104), (7360, 270382), (7595, 262016), (7840, 253828), (8188, 243040), (8680, 229264), (8722, 228160), (9016, 220720), (9920, 200606), (9968, 199640), (9982, 199360), (10235, 194432), (10304, 193130), (11036, 180320), (11270, 176576), (11392, 174685), (11408, 174440), (12152, 163760), (12460, 159712), (12880, 154504), (13795, 144256), (13888, 143290), (14240, 139748), (14260, 139552), (14329, 138880), (14720, 135191), (15190, 131008), (15680, 126914), (16376, 121520), (17360, 114632), (17444, 114080), (18032, 110360), (19313, 103040), (19840, 100303), (19936, 99820), (19964, 99680), (20470, 97216), (20608, 96565), (21805, 91264), (22072, 90160), (22540, 88288), (22816, 87220), (24304, 81880), (24920, 79856), (24955, 79744), (25760, 77252), (27590, 72128), (27776, 71645), (28480, 69874), (28520, 69776), (28658, 69440), (30380, 65504), (31360, 63457), (32752, 60760), (34720, 57316), (34888, 57040), (34937, 56960), (36064, 55180), (38626, 51520), (39872, 49910), (39928, 49840), (40940, 48608), (43610, 45632), (44144, 45080)]