85845820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{138461}}^1$

素因数の和:138501

約数の個数: 24

約数和(自身を含む): 186092928

約数和(自身を除く): 100247108

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 138461, 276922, 553844, 692305, 1384610, 2769220, 4292291, 8584582, 17169164, 21461455, 42922910, 85845820]

約数ペア:

[(1, 85845820), (2, 42922910), (4, 21461455), (5, 17169164), (10, 8584582), (20, 4292291), (31, 2769220), (62, 1384610), (124, 692305), (155, 553844), (310, 276922), (620, 138461)]