40650020

素因数分解:

$2^2\times 5^1\times {\mathrm{1181}}^1\times {\mathrm{1721}}^1$

素因数の和:2911

約数の個数: 24

約数和(自身を含む): 85486968

約数和(自身を除く): 44836948

約数列:

[1, 2, 4, 5, 10, 20, 1181, 1721, 2362, 3442, 4724, 5905, 6884, 8605, 11810, 17210, 23620, 34420, 2032501, 4065002, 8130004, 10162505, 20325010, 40650020]

約数ペア:

[(1, 40650020), (2, 20325010), (4, 10162505), (5, 8130004), (10, 4065002), (20, 2032501), (1181, 34420), (1721, 23620), (2362, 17210), (3442, 11810), (4724, 8605), (5905, 6884)]