20538200

素因数分解:

$2^3\times 5^2\times {\mathrm{103}}^1\times {\mathrm{997}}^1$

素因数の和:1116

約数の個数: 48

約数和(自身を含む): 48263280

約数和(自身を除く): 27725080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 103, 200, 206, 412, 515, 824, 997, 1030, 1994, 2060, 2575, 3988, 4120, 4985, 5150, 7976, 9970, 10300, 19940, 20600, 24925, 39880, 49850, 99700, 102691, 199400, 205382, 410764, 513455, 821528, 1026910, 2053820, 2567275, 4107640, 5134550, 10269100, 20538200]

約数ペア:

[(1, 20538200), (2, 10269100), (4, 5134550), (5, 4107640), (8, 2567275), (10, 2053820), (20, 1026910), (25, 821528), (40, 513455), (50, 410764), (100, 205382), (103, 199400), (200, 102691), (206, 99700), (412, 49850), (515, 39880), (824, 24925), (997, 20600), (1030, 19940), (1994, 10300), (2060, 9970), (2575, 7976), (3988, 5150), (4120, 4985)]