4028620

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1283}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 8520624

約数和(自身を除く): 4492004

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1283, 1570, 2566, 3140, 5132, 6415, 12830, 25660, 201431, 402862, 805724, 1007155, 2014310, 4028620]

約数ペア:

[(1, 4028620), (2, 2014310), (4, 1007155), (5, 805724), (10, 402862), (20, 201431), (157, 25660), (314, 12830), (628, 6415), (785, 5132), (1283, 3140), (1570, 2566)]