81421260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1357021}}^1$

素因数の和:1357033

約数の個数: 24

約数和(自身を含む): 227979696

約数和(自身を除く): 146558436

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1357021, 2714042, 4071063, 5428084, 6785105, 8142126, 13570210, 16284252, 20355315, 27140420, 40710630, 81421260]

約数ペア:

[(1, 81421260), (2, 40710630), (3, 27140420), (4, 20355315), (5, 16284252), (6, 13570210), (10, 8142126), (12, 6785105), (15, 5428084), (20, 4071063), (30, 2714042), (60, 1357021)]