280654920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{659}}^1$

素因数の和:709

約数の個数: 288

約数和(自身を含む): 1130500800

約数和(自身を除く): 849845880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 169, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 338, 360, 364, 390, 420, 455, 468, 504, 507, 520, 546, 585, 630, 659, 676, 728, 780, 819, 840, 845, 910, 936, 1014, 1092, 1170, 1183, 1260, 1318, 1352, 1365, 1521, 1560, 1638, 1690, 1820, 1977, 2028, 2184, 2340, 2366, 2520, 2535, 2636, 2730, 3042, 3276, 3295, 3380, 3549, 3640, 3954, 4056, 4095, 4613, 4680, 4732, 5070, 5272, 5460, 5915, 5931, 6084, 6552, 6590, 6760, 7098, 7605, 7908, 8190, 8567, 9226, 9464, 9885, 10140, 10647, 10920, 11830, 11862, 12168, 13180, 13839, 14196, 15210, 15816, 16380, 17134, 17745, 18452, 19770, 20280, 21294, 23065, 23660, 23724, 25701, 26360, 27678, 28392, 29655, 30420, 32760, 34268, 35490, 36904, 39540, 41517, 42588, 42835, 46130, 47320, 47448, 51402, 53235, 55356, 59310, 59969, 60840, 68536, 69195, 70980, 77103, 79080, 83034, 85176, 85670, 92260, 102804, 106470, 110712, 111371, 118620, 119938, 128505, 138390, 141960, 154206, 166068, 171340, 179907, 184520, 205608, 207585, 212940, 222742, 237240, 239876, 257010, 276780, 299845, 308412, 332136, 334113, 342680, 359814, 385515, 415170, 425880, 445484, 479752, 514020, 539721, 553560, 556855, 599690, 616824, 668226, 719628, 771030, 779597, 830340, 890968, 899535, 1002339, 1028040, 1079442, 1113710, 1199380, 1336452, 1439256, 1542060, 1559194, 1660680, 1670565, 1799070, 2004678, 2158884, 2227420, 2338791, 2398760, 2672904, 2698605, 3084120, 3118388, 3341130, 3598140, 3897985, 4009356, 4317768, 4454840, 4677582, 5011695, 5397210, 6236776, 6682260, 7016373, 7196280, 7795970, 8018712, 9355164, 10023390, 10794420, 11693955, 13364520, 14032746, 15591940, 18710328, 20046780, 21588840, 23387910, 28065492, 31183880, 35081865, 40093560, 46775820, 56130984, 70163730, 93551640, 140327460, 280654920]

約数ペア:

[(1, 280654920), (2, 140327460), (3, 93551640), (4, 70163730), (5, 56130984), (6, 46775820), (7, 40093560), (8, 35081865), (9, 31183880), (10, 28065492), (12, 23387910), (13, 21588840), (14, 20046780), (15, 18710328), (18, 15591940), (20, 14032746), (21, 13364520), (24, 11693955), (26, 10794420), (28, 10023390), (30, 9355164), (35, 8018712), (36, 7795970), (39, 7196280), (40, 7016373), (42, 6682260), (45, 6236776), (52, 5397210), (56, 5011695), (60, 4677582), (63, 4454840), (65, 4317768), (70, 4009356), (72, 3897985), (78, 3598140), (84, 3341130), (90, 3118388), (91, 3084120), (104, 2698605), (105, 2672904), (117, 2398760), (120, 2338791), (126, 2227420), (130, 2158884), (140, 2004678), (156, 1799070), (168, 1670565), (169, 1660680), (180, 1559194), (182, 1542060), (195, 1439256), (210, 1336452), (234, 1199380), (252, 1113710), (260, 1079442), (273, 1028040), (280, 1002339), (312, 899535), (315, 890968), (338, 830340), (360, 779597), (364, 771030), (390, 719628), (420, 668226), (455, 616824), (468, 599690), (504, 556855), (507, 553560), (520, 539721), (546, 514020), (585, 479752), (630, 445484), (659, 425880), (676, 415170), (728, 385515), (780, 359814), (819, 342680), (840, 334113), (845, 332136), (910, 308412), (936, 299845), (1014, 276780), (1092, 257010), (1170, 239876), (1183, 237240), (1260, 222742), (1318, 212940), (1352, 207585), (1365, 205608), (1521, 184520), (1560, 179907), (1638, 171340), (1690, 166068), (1820, 154206), (1977, 141960), (2028, 138390), (2184, 128505), (2340, 119938), (2366, 118620), (2520, 111371), (2535, 110712), (2636, 106470), (2730, 102804), (3042, 92260), (3276, 85670), (3295, 85176), (3380, 83034), (3549, 79080), (3640, 77103), (3954, 70980), (4056, 69195), (4095, 68536), (4613, 60840), (4680, 59969), (4732, 59310), (5070, 55356), (5272, 53235), (5460, 51402), (5915, 47448), (5931, 47320), (6084, 46130), (6552, 42835), (6590, 42588), (6760, 41517), (7098, 39540), (7605, 36904), (7908, 35490), (8190, 34268), (8567, 32760), (9226, 30420), (9464, 29655), (9885, 28392), (10140, 27678), (10647, 26360), (10920, 25701), (11830, 23724), (11862, 23660), (12168, 23065), (13180, 21294), (13839, 20280), (14196, 19770), (15210, 18452), (15816, 17745), (16380, 17134)]