20539160

素因数分解:

$2^3\times 5^1\times {\mathrm{513479}}^1$

素因数の和:513490

約数の個数: 16

約数和(自身を含む): 46213200

約数和(自身を除く): 25674040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 513479, 1026958, 2053916, 2567395, 4107832, 5134790, 10269580, 20539160]

約数ペア:

[(1, 20539160), (2, 10269580), (4, 5134790), (5, 4107832), (8, 2567395), (10, 2053916), (20, 1026958), (40, 513479)]