78516880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4441}}^1$

素因数の和:4484

約数の個数: 80

約数和(自身を含む): 208205424

約数和(自身を除く): 129688544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 4441, 8840, 8882, 17680, 17764, 22205, 35528, 44410, 57733, 71056, 75497, 88820, 115466, 150994, 177640, 230932, 288665, 301988, 355280, 377485, 461864, 577330, 603976, 754970, 923728, 981461, 1154660, 1207952, 1509940, 1962922, 2309320, 3019880, 3925844, 4618640, 4907305, 6039760, 7851688, 9814610, 15703376, 19629220, 39258440, 78516880]

約数ペア:

[(1, 78516880), (2, 39258440), (4, 19629220), (5, 15703376), (8, 9814610), (10, 7851688), (13, 6039760), (16, 4907305), (17, 4618640), (20, 3925844), (26, 3019880), (34, 2309320), (40, 1962922), (52, 1509940), (65, 1207952), (68, 1154660), (80, 981461), (85, 923728), (104, 754970), (130, 603976), (136, 577330), (170, 461864), (208, 377485), (221, 355280), (260, 301988), (272, 288665), (340, 230932), (442, 177640), (520, 150994), (680, 115466), (884, 88820), (1040, 75497), (1105, 71056), (1360, 57733), (1768, 44410), (2210, 35528), (3536, 22205), (4420, 17764), (4441, 17680), (8840, 8882)]