80621260

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{66083}}^1$

素因数の和:66153

約数の個数: 24

約数和(自身を含む): 172082736

約数和(自身を除く): 91461476

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 66083, 132166, 264332, 330415, 660830, 1321660, 4031063, 8062126, 16124252, 20155315, 40310630, 80621260]

約数ペア:

[(1, 80621260), (2, 40310630), (4, 20155315), (5, 16124252), (10, 8062126), (20, 4031063), (61, 1321660), (122, 660830), (244, 330415), (305, 264332), (610, 132166), (1220, 66083)]