64838980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{104579}}^1$

素因数の和:104619

約数の個数: 24

約数和(自身を含む): 140555520

約数和(自身を除く): 75716540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 104579, 209158, 418316, 522895, 1045790, 2091580, 3241949, 6483898, 12967796, 16209745, 32419490, 64838980]

約数ペア:

[(1, 64838980), (2, 32419490), (4, 16209745), (5, 12967796), (10, 6483898), (20, 3241949), (31, 2091580), (62, 1045790), (124, 522895), (155, 418316), (310, 209158), (620, 104579)]