20140640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:472

約数の個数: 96

約数和(自身を含む): 53597376

約数和(自身を除く): 33456736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 299, 368, 416, 421, 460, 520, 598, 736, 842, 920, 1040, 1196, 1495, 1684, 1840, 2080, 2105, 2392, 2990, 3368, 3680, 4210, 4784, 5473, 5980, 6736, 8420, 9568, 9683, 10946, 11960, 13472, 16840, 19366, 21892, 23920, 27365, 33680, 38732, 43784, 47840, 48415, 54730, 67360, 77464, 87568, 96830, 109460, 125879, 154928, 175136, 193660, 218920, 251758, 309856, 387320, 437840, 503516, 629395, 774640, 875680, 1007032, 1258790, 1549280, 2014064, 2517580, 4028128, 5035160, 10070320, 20140640]

約数ペア:

[(1, 20140640), (2, 10070320), (4, 5035160), (5, 4028128), (8, 2517580), (10, 2014064), (13, 1549280), (16, 1258790), (20, 1007032), (23, 875680), (26, 774640), (32, 629395), (40, 503516), (46, 437840), (52, 387320), (65, 309856), (80, 251758), (92, 218920), (104, 193660), (115, 175136), (130, 154928), (160, 125879), (184, 109460), (208, 96830), (230, 87568), (260, 77464), (299, 67360), (368, 54730), (416, 48415), (421, 47840), (460, 43784), (520, 38732), (598, 33680), (736, 27365), (842, 23920), (920, 21892), (1040, 19366), (1196, 16840), (1495, 13472), (1684, 11960), (1840, 10946), (2080, 9683), (2105, 9568), (2392, 8420), (2990, 6736), (3368, 5980), (3680, 5473), (4210, 4784)]