31942520

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{3581}}^1$

素因数の和:3815

約数の個数: 32

約数和(自身を含む): 72213120

約数和(自身を除く): 40270600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 3581, 4460, 7162, 8920, 14324, 17905, 28648, 35810, 71620, 143240, 798563, 1597126, 3194252, 3992815, 6388504, 7985630, 15971260, 31942520]

約数ペア:

[(1, 31942520), (2, 15971260), (4, 7985630), (5, 6388504), (8, 3992815), (10, 3194252), (20, 1597126), (40, 798563), (223, 143240), (446, 71620), (892, 35810), (1115, 28648), (1784, 17905), (2230, 14324), (3581, 8920), (4460, 7162)]