81496640

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:316

約数の個数: 112

約数和(自身を含む): 209361024

約数和(自身を除く): 127864384

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 71, 80, 85, 136, 142, 160, 170, 211, 272, 284, 320, 340, 355, 422, 544, 568, 680, 710, 844, 1055, 1088, 1136, 1207, 1360, 1420, 1688, 2110, 2272, 2414, 2720, 2840, 3376, 3587, 4220, 4544, 4828, 5440, 5680, 6035, 6752, 7174, 8440, 9656, 11360, 12070, 13504, 14348, 14981, 16880, 17935, 19312, 22720, 24140, 28696, 29962, 33760, 35870, 38624, 48280, 57392, 59924, 67520, 71740, 74905, 77248, 96560, 114784, 119848, 143480, 149810, 193120, 229568, 239696, 254677, 286960, 299620, 386240, 479392, 509354, 573920, 599240, 958784, 1018708, 1147840, 1198480, 1273385, 2037416, 2396960, 2546770, 4074832, 4793920, 5093540, 8149664, 10187080, 16299328, 20374160, 40748320, 81496640]

約数ペア:

[(1, 81496640), (2, 40748320), (4, 20374160), (5, 16299328), (8, 10187080), (10, 8149664), (16, 5093540), (17, 4793920), (20, 4074832), (32, 2546770), (34, 2396960), (40, 2037416), (64, 1273385), (68, 1198480), (71, 1147840), (80, 1018708), (85, 958784), (136, 599240), (142, 573920), (160, 509354), (170, 479392), (211, 386240), (272, 299620), (284, 286960), (320, 254677), (340, 239696), (355, 229568), (422, 193120), (544, 149810), (568, 143480), (680, 119848), (710, 114784), (844, 96560), (1055, 77248), (1088, 74905), (1136, 71740), (1207, 67520), (1360, 59924), (1420, 57392), (1688, 48280), (2110, 38624), (2272, 35870), (2414, 33760), (2720, 29962), (2840, 28696), (3376, 24140), (3587, 22720), (4220, 19312), (4544, 17935), (4828, 16880), (5440, 14981), (5680, 14348), (6035, 13504), (6752, 12070), (7174, 11360), (8440, 9656)]