13579820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11131}}^1$

素因数の和:11201

約数の個数: 24

約数和(自身を含む): 28987728

約数和(自身を除く): 15407908

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 11131, 22262, 44524, 55655, 111310, 222620, 678991, 1357982, 2715964, 3394955, 6789910, 13579820]

約数ペア:

[(1, 13579820), (2, 6789910), (4, 3394955), (5, 2715964), (10, 1357982), (20, 678991), (61, 222620), (122, 111310), (244, 55655), (305, 44524), (610, 22262), (1220, 11131)]