20340015880

素因数分解:

$2^3\times 5^1\times {\mathrm{508500397}}^1$

素因数の和:508500408

約数の個数: 16

約数和(自身を含む): 45765035820

約数和(自身を除く): 25425019940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 508500397, 1017000794, 2034001588, 2542501985, 4068003176, 5085003970, 10170007940, 20340015880]

約数ペア:

[(1, 20340015880), (2, 10170007940), (4, 5085003970), (5, 4068003176), (8, 2542501985), (10, 2034001588), (20, 1017000794), (40, 508500397)]