20528510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66221}}^1$

素因数の和:66259

約数の個数: 16

約数和(自身を含む): 38143872

約数和(自身を除く): 17615362

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 66221, 132442, 331105, 662210, 2052851, 4105702, 10264255, 20528510]

約数ペア:

[(1, 20528510), (2, 10264255), (5, 4105702), (10, 2052851), (31, 662210), (62, 331105), (155, 132442), (310, 66221)]