127976680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:539

約数の個数: 128

約数和(自身を含む): 339655680

約数和(自身を除く): 211679000

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 31, 34, 40, 52, 62, 65, 68, 85, 104, 124, 130, 136, 155, 170, 221, 248, 260, 310, 340, 403, 442, 467, 520, 527, 620, 680, 806, 884, 934, 1054, 1105, 1240, 1612, 1768, 1868, 2015, 2108, 2210, 2335, 2635, 3224, 3736, 4030, 4216, 4420, 4670, 5270, 6071, 6851, 7939, 8060, 8840, 9340, 10540, 12142, 13702, 14477, 15878, 16120, 18680, 21080, 24284, 27404, 28954, 30355, 31756, 34255, 39695, 48568, 54808, 57908, 60710, 63512, 68510, 72385, 79390, 103207, 115816, 121420, 137020, 144770, 158780, 188201, 206414, 242840, 246109, 274040, 289540, 317560, 376402, 412828, 492218, 516035, 579080, 752804, 825656, 941005, 984436, 1032070, 1230545, 1505608, 1882010, 1968872, 2064140, 2461090, 3199417, 3764020, 4128280, 4922180, 6398834, 7528040, 9844360, 12797668, 15997085, 25595336, 31994170, 63988340, 127976680]

約数ペア:

[(1, 127976680), (2, 63988340), (4, 31994170), (5, 25595336), (8, 15997085), (10, 12797668), (13, 9844360), (17, 7528040), (20, 6398834), (26, 4922180), (31, 4128280), (34, 3764020), (40, 3199417), (52, 2461090), (62, 2064140), (65, 1968872), (68, 1882010), (85, 1505608), (104, 1230545), (124, 1032070), (130, 984436), (136, 941005), (155, 825656), (170, 752804), (221, 579080), (248, 516035), (260, 492218), (310, 412828), (340, 376402), (403, 317560), (442, 289540), (467, 274040), (520, 246109), (527, 242840), (620, 206414), (680, 188201), (806, 158780), (884, 144770), (934, 137020), (1054, 121420), (1105, 115816), (1240, 103207), (1612, 79390), (1768, 72385), (1868, 68510), (2015, 63512), (2108, 60710), (2210, 57908), (2335, 54808), (2635, 48568), (3224, 39695), (3736, 34255), (4030, 31756), (4216, 30355), (4420, 28954), (4670, 27404), (5270, 24284), (6071, 21080), (6851, 18680), (7939, 16120), (8060, 15878), (8840, 14477), (9340, 13702), (10540, 12142)]