85428100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{19867}}^1$

素因数の和:19924

約数の個数: 36

約数和(自身を含む): 189699664

約数和(自身を除く): 104271564

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 19867, 39734, 79468, 99335, 198670, 397340, 496675, 854281, 993350, 1708562, 1986700, 3417124, 4271405, 8542810, 17085620, 21357025, 42714050, 85428100]

約数ペア:

[(1, 85428100), (2, 42714050), (4, 21357025), (5, 17085620), (10, 8542810), (20, 4271405), (25, 3417124), (43, 1986700), (50, 1708562), (86, 993350), (100, 854281), (172, 496675), (215, 397340), (430, 198670), (860, 99335), (1075, 79468), (2150, 39734), (4300, 19867)]