128621520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{863}}^1$

素因数の和:911

約数の個数: 200

約数和(自身を含む): 466684416

約数和(自身を除く): 338062896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 81, 90, 92, 108, 115, 120, 135, 138, 144, 162, 180, 184, 207, 216, 230, 240, 270, 276, 324, 345, 360, 368, 405, 414, 432, 460, 540, 552, 621, 648, 690, 720, 810, 828, 863, 920, 1035, 1080, 1104, 1242, 1296, 1380, 1620, 1656, 1726, 1840, 1863, 2070, 2160, 2484, 2589, 2760, 3105, 3240, 3312, 3452, 3726, 4140, 4315, 4968, 5178, 5520, 6210, 6480, 6904, 7452, 7767, 8280, 8630, 9315, 9936, 10356, 12420, 12945, 13808, 14904, 15534, 16560, 17260, 18630, 19849, 20712, 23301, 24840, 25890, 29808, 31068, 34520, 37260, 38835, 39698, 41424, 46602, 49680, 51780, 59547, 62136, 69040, 69903, 74520, 77670, 79396, 93204, 99245, 103560, 116505, 119094, 124272, 139806, 149040, 155340, 158792, 178641, 186408, 198490, 207120, 233010, 238188, 279612, 297735, 310680, 317584, 349515, 357282, 372816, 396980, 466020, 476376, 535923, 559224, 595470, 621360, 699030, 714564, 793960, 893205, 932040, 952752, 1071846, 1118448, 1190940, 1398060, 1429128, 1587920, 1607769, 1786410, 1864080, 2143692, 2381880, 2679615, 2796120, 2858256, 3215538, 3572820, 4287384, 4763760, 5359230, 5592240, 6431076, 7145640, 8038845, 8574768, 10718460, 12862152, 14291280, 16077690, 21436920, 25724304, 32155380, 42873840, 64310760, 128621520]

約数ペア:

[(1, 128621520), (2, 64310760), (3, 42873840), (4, 32155380), (5, 25724304), (6, 21436920), (8, 16077690), (9, 14291280), (10, 12862152), (12, 10718460), (15, 8574768), (16, 8038845), (18, 7145640), (20, 6431076), (23, 5592240), (24, 5359230), (27, 4763760), (30, 4287384), (36, 3572820), (40, 3215538), (45, 2858256), (46, 2796120), (48, 2679615), (54, 2381880), (60, 2143692), (69, 1864080), (72, 1786410), (80, 1607769), (81, 1587920), (90, 1429128), (92, 1398060), (108, 1190940), (115, 1118448), (120, 1071846), (135, 952752), (138, 932040), (144, 893205), (162, 793960), (180, 714564), (184, 699030), (207, 621360), (216, 595470), (230, 559224), (240, 535923), (270, 476376), (276, 466020), (324, 396980), (345, 372816), (360, 357282), (368, 349515), (405, 317584), (414, 310680), (432, 297735), (460, 279612), (540, 238188), (552, 233010), (621, 207120), (648, 198490), (690, 186408), (720, 178641), (810, 158792), (828, 155340), (863, 149040), (920, 139806), (1035, 124272), (1080, 119094), (1104, 116505), (1242, 103560), (1296, 99245), (1380, 93204), (1620, 79396), (1656, 77670), (1726, 74520), (1840, 69903), (1863, 69040), (2070, 62136), (2160, 59547), (2484, 51780), (2589, 49680), (2760, 46602), (3105, 41424), (3240, 39698), (3312, 38835), (3452, 37260), (3726, 34520), (4140, 31068), (4315, 29808), (4968, 25890), (5178, 24840), (5520, 23301), (6210, 20712), (6480, 19849), (6904, 18630), (7452, 17260), (7767, 16560), (8280, 15534), (8630, 14904), (9315, 13808), (9936, 12945), (10356, 12420)]