20513810

素因数分解:

$2^1\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3251}}^1$

素因数の和:3889

約数の個数: 16

約数和(自身を含む): 36994752

約数和(自身を除く): 16480942

約数列:

[1, 2, 5, 10, 631, 1262, 3155, 3251, 6310, 6502, 16255, 32510, 2051381, 4102762, 10256905, 20513810]

約数ペア:

[(1, 20513810), (2, 10256905), (5, 4102762), (10, 2051381), (631, 32510), (1262, 16255), (3155, 6502), (3251, 6310)]