4016380

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{491}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 8472240

約数和(自身を除く): 4455860

約数列:

[1, 2, 4, 5, 10, 20, 409, 491, 818, 982, 1636, 1964, 2045, 2455, 4090, 4910, 8180, 9820, 200819, 401638, 803276, 1004095, 2008190, 4016380]

約数ペア:

[(1, 4016380), (2, 2008190), (4, 1004095), (5, 803276), (10, 401638), (20, 200819), (409, 9820), (491, 8180), (818, 4910), (982, 4090), (1636, 2455), (1964, 2045)]