207878680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 476282880

約数和(自身を除く): 268404200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 151, 254, 271, 302, 508, 542, 604, 635, 755, 1016, 1084, 1208, 1270, 1355, 1510, 2168, 2540, 2710, 3020, 5080, 5420, 6040, 10840, 19177, 34417, 38354, 40921, 68834, 76708, 81842, 95885, 137668, 153416, 163684, 172085, 191770, 204605, 275336, 327368, 344170, 383540, 409210, 688340, 767080, 818420, 1376680, 1636840, 5196967, 10393934, 20787868, 25984835, 41575736, 51969670, 103939340, 207878680]

約数ペア:

[(1, 207878680), (2, 103939340), (4, 51969670), (5, 41575736), (8, 25984835), (10, 20787868), (20, 10393934), (40, 5196967), (127, 1636840), (151, 1376680), (254, 818420), (271, 767080), (302, 688340), (508, 409210), (542, 383540), (604, 344170), (635, 327368), (755, 275336), (1016, 204605), (1084, 191770), (1208, 172085), (1270, 163684), (1355, 153416), (1510, 137668), (2168, 95885), (2540, 81842), (2710, 76708), (3020, 68834), (5080, 40921), (5420, 38354), (6040, 34417), (10840, 19177)]