20426120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3571}}^1$

素因数の和:3606

約数の個数: 64

約数和(自身を含む): 54008640

約数和(自身を除く): 33582520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3571, 5720, 7142, 14284, 17855, 28568, 35710, 39281, 46423, 71420, 78562, 92846, 142840, 157124, 185692, 196405, 232115, 314248, 371384, 392810, 464230, 510653, 785620, 928460, 1021306, 1571240, 1856920, 2042612, 2553265, 4085224, 5106530, 10213060, 20426120]

約数ペア:

[(1, 20426120), (2, 10213060), (4, 5106530), (5, 4085224), (8, 2553265), (10, 2042612), (11, 1856920), (13, 1571240), (20, 1021306), (22, 928460), (26, 785620), (40, 510653), (44, 464230), (52, 392810), (55, 371384), (65, 314248), (88, 232115), (104, 196405), (110, 185692), (130, 157124), (143, 142840), (220, 92846), (260, 78562), (286, 71420), (440, 46423), (520, 39281), (572, 35710), (715, 28568), (1144, 17855), (1430, 14284), (2860, 7142), (3571, 5720)]