31480730

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 58449600

約数和(自身を除く): 26968870

約数列:

[1, 2, 5, 10, 43, 86, 179, 215, 358, 409, 430, 818, 895, 1790, 2045, 4090, 7697, 15394, 17587, 35174, 38485, 73211, 76970, 87935, 146422, 175870, 366055, 732110, 3148073, 6296146, 15740365, 31480730]

約数ペア:

[(1, 31480730), (2, 15740365), (5, 6296146), (10, 3148073), (43, 732110), (86, 366055), (179, 175870), (215, 146422), (358, 87935), (409, 76970), (430, 73211), (818, 38485), (895, 35174), (1790, 17587), (2045, 15394), (4090, 7697)]