31353940

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3833}}^1$

素因数の和:4251

約数の個数: 24

約数和(自身を含む): 66021480

約数和(自身を除く): 34667540

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 3833, 4090, 7666, 8180, 15332, 19165, 38330, 76660, 1567697, 3135394, 6270788, 7838485, 15676970, 31353940]

約数ペア:

[(1, 31353940), (2, 15676970), (4, 7838485), (5, 6270788), (10, 3135394), (20, 1567697), (409, 76660), (818, 38330), (1636, 19165), (2045, 15332), (3833, 8180), (4090, 7666)]