20403050

素因数分解:

$2^1\times 5^2\times {\mathrm{389}}^1\times {\mathrm{1049}}^1$

素因数の和:1450

約数の個数: 24

約数和(自身を含む): 38083500

約数和(自身を除く): 17680450

約数列:

[1, 2, 5, 10, 25, 50, 389, 778, 1049, 1945, 2098, 3890, 5245, 9725, 10490, 19450, 26225, 52450, 408061, 816122, 2040305, 4080610, 10201525, 20403050]

約数ペア:

[(1, 20403050), (2, 10201525), (5, 4080610), (10, 2040305), (25, 816122), (50, 408061), (389, 52450), (778, 26225), (1049, 19450), (1945, 10490), (2098, 9725), (3890, 5245)]