20659310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10177}}^1$

素因数の和:10220

約数の個数: 32

約数和(自身を含む): 43968960

約数和(自身を除く): 23309650

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10177, 20354, 50885, 71239, 101770, 142478, 295133, 356195, 590266, 712390, 1475665, 2065931, 2951330, 4131862, 10329655, 20659310]

約数ペア:

[(1, 20659310), (2, 10329655), (5, 4131862), (7, 2951330), (10, 2065931), (14, 1475665), (29, 712390), (35, 590266), (58, 356195), (70, 295133), (145, 142478), (203, 101770), (290, 71239), (406, 50885), (1015, 20354), (2030, 10177)]