248751440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:170

約数の個数: 240

約数和(自身を含む): 732810240

約数和(自身を除く): 484058800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 49, 56, 62, 70, 80, 89, 92, 98, 112, 115, 124, 140, 155, 161, 178, 184, 196, 217, 230, 245, 248, 280, 310, 322, 356, 368, 392, 434, 445, 460, 490, 496, 560, 620, 623, 644, 712, 713, 784, 805, 868, 890, 920, 980, 1085, 1127, 1240, 1246, 1288, 1424, 1426, 1519, 1610, 1736, 1780, 1840, 1960, 2047, 2170, 2254, 2480, 2492, 2576, 2759, 2852, 3038, 3115, 3220, 3472, 3560, 3565, 3920, 4094, 4340, 4361, 4508, 4984, 4991, 5518, 5635, 5704, 6076, 6230, 6440, 7120, 7130, 7595, 8188, 8680, 8722, 9016, 9968, 9982, 10235, 11036, 11270, 11408, 12152, 12460, 12880, 13795, 14260, 14329, 15190, 16376, 17360, 17444, 18032, 19313, 19964, 20470, 21805, 22072, 22540, 24304, 24920, 24955, 27590, 28520, 28658, 30380, 32752, 34888, 34937, 38626, 39928, 40940, 43610, 44144, 45080, 49840, 49910, 55180, 57040, 57316, 60760, 63457, 69776, 69874, 71645, 77252, 79856, 81880, 87220, 90160, 96565, 99820, 100303, 110360, 114632, 121520, 126914, 135191, 139748, 143290, 154504, 163760, 174440, 174685, 193130, 199640, 200606, 220720, 229264, 253828, 270382, 279496, 286580, 309008, 317285, 348880, 349370, 386260, 399280, 401212, 444199, 501515, 507656, 540764, 558992, 573160, 634570, 675955, 698740, 772520, 802424, 888398, 1003030, 1015312, 1081528, 1146320, 1269140, 1351910, 1397480, 1545040, 1604848, 1776796, 2006060, 2163056, 2220995, 2538280, 2703820, 2794960, 3109393, 3553592, 4012120, 4441990, 5076560, 5407640, 6218786, 7107184, 8024240, 8883980, 10815280, 12437572, 15546965, 17767960, 24875144, 31093930, 35535920, 49750288, 62187860, 124375720, 248751440]

約数ペア:

[(1, 248751440), (2, 124375720), (4, 62187860), (5, 49750288), (7, 35535920), (8, 31093930), (10, 24875144), (14, 17767960), (16, 15546965), (20, 12437572), (23, 10815280), (28, 8883980), (31, 8024240), (35, 7107184), (40, 6218786), (46, 5407640), (49, 5076560), (56, 4441990), (62, 4012120), (70, 3553592), (80, 3109393), (89, 2794960), (92, 2703820), (98, 2538280), (112, 2220995), (115, 2163056), (124, 2006060), (140, 1776796), (155, 1604848), (161, 1545040), (178, 1397480), (184, 1351910), (196, 1269140), (217, 1146320), (230, 1081528), (245, 1015312), (248, 1003030), (280, 888398), (310, 802424), (322, 772520), (356, 698740), (368, 675955), (392, 634570), (434, 573160), (445, 558992), (460, 540764), (490, 507656), (496, 501515), (560, 444199), (620, 401212), (623, 399280), (644, 386260), (712, 349370), (713, 348880), (784, 317285), (805, 309008), (868, 286580), (890, 279496), (920, 270382), (980, 253828), (1085, 229264), (1127, 220720), (1240, 200606), (1246, 199640), (1288, 193130), (1424, 174685), (1426, 174440), (1519, 163760), (1610, 154504), (1736, 143290), (1780, 139748), (1840, 135191), (1960, 126914), (2047, 121520), (2170, 114632), (2254, 110360), (2480, 100303), (2492, 99820), (2576, 96565), (2759, 90160), (2852, 87220), (3038, 81880), (3115, 79856), (3220, 77252), (3472, 71645), (3560, 69874), (3565, 69776), (3920, 63457), (4094, 60760), (4340, 57316), (4361, 57040), (4508, 55180), (4984, 49910), (4991, 49840), (5518, 45080), (5635, 44144), (5704, 43610), (6076, 40940), (6230, 39928), (6440, 38626), (7120, 34937), (7130, 34888), (7595, 32752), (8188, 30380), (8680, 28658), (8722, 28520), (9016, 27590), (9968, 24955), (9982, 24920), (10235, 24304), (11036, 22540), (11270, 22072), (11408, 21805), (12152, 20470), (12460, 19964), (12880, 19313), (13795, 18032), (14260, 17444), (14329, 17360), (15190, 16376)]