81731050

素因数分解:

$2^1\times 5^2\times {\mathrm{1021}}^1\times {\mathrm{1601}}^1$

素因数の和:2634

約数の個数: 24

約数和(自身を含む): 152263692

約数和(自身を除く): 70532642

約数列:

[1, 2, 5, 10, 25, 50, 1021, 1601, 2042, 3202, 5105, 8005, 10210, 16010, 25525, 40025, 51050, 80050, 1634621, 3269242, 8173105, 16346210, 40865525, 81731050]

約数ペア:

[(1, 81731050), (2, 40865525), (5, 16346210), (10, 8173105), (25, 3269242), (50, 1634621), (1021, 80050), (1601, 51050), (2042, 40025), (3202, 25525), (5105, 16010), (8005, 10210)]