157077220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{77761}}^1$

素因数の和:77871

約数の個数: 24

約数和(自身を含む): 333132408

約数和(自身を除く): 176055188

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 77761, 155522, 311044, 388805, 777610, 1555220, 7853861, 15707722, 31415444, 39269305, 78538610, 157077220]

約数ペア:

[(1, 157077220), (2, 78538610), (4, 39269305), (5, 31415444), (10, 15707722), (20, 7853861), (101, 1555220), (202, 777610), (404, 388805), (505, 311044), (1010, 155522), (2020, 77761)]