31879660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20177}}^1$

素因数の和:20265

約数の個数: 24

約数和(自身を含む): 67798080

約数和(自身を除く): 35918420

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 20177, 40354, 80708, 100885, 201770, 403540, 1593983, 3187966, 6375932, 7969915, 15939830, 31879660]

約数ペア:

[(1, 31879660), (2, 15939830), (4, 7969915), (5, 6375932), (10, 3187966), (20, 1593983), (79, 403540), (158, 201770), (316, 100885), (395, 80708), (790, 40354), (1580, 20177)]