8025820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^2$

素因数の和:402

約数の個数: 36

約数和(自身を含む): 18483192

約数和(自身を除く): 10457372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 764, 955, 1910, 2101, 3820, 4202, 8404, 10505, 21010, 36481, 42020, 72962, 145924, 182405, 364810, 401291, 729620, 802582, 1605164, 2006455, 4012910, 8025820]

約数ペア:

[(1, 8025820), (2, 4012910), (4, 2006455), (5, 1605164), (10, 802582), (11, 729620), (20, 401291), (22, 364810), (44, 182405), (55, 145924), (110, 72962), (191, 42020), (220, 36481), (382, 21010), (764, 10505), (955, 8404), (1910, 4202), (2101, 3820)]