31889140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20183}}^1$

素因数の和:20271

約数の個数: 24

約数和(自身を含む): 67818240

約数和(自身を除く): 35929100

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 20183, 40366, 80732, 100915, 201830, 403660, 1594457, 3188914, 6377828, 7972285, 15944570, 31889140]

約数ペア:

[(1, 31889140), (2, 15944570), (4, 7972285), (5, 6377828), (10, 3188914), (20, 1594457), (79, 403660), (158, 201830), (316, 100915), (395, 80732), (790, 40366), (1580, 20183)]