31393940

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{7039}}^1$

素因数の和:7271

約数の個数: 24

約数和(自身を含む): 66232320

約数和(自身を除く): 34838380

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 7039, 14078, 28156, 35195, 70390, 140780, 1569697, 3139394, 6278788, 7848485, 15696970, 31393940]

約数ペア:

[(1, 31393940), (2, 15696970), (4, 7848485), (5, 6278788), (10, 3139394), (20, 1569697), (223, 140780), (446, 70390), (892, 35195), (1115, 28156), (2230, 14078), (4460, 7039)]