25292780

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3251}}^1$

素因数の和:3649

約数の個数: 24

約数和(自身を含む): 53267760

約数和(自身を除く): 27974980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3251, 3890, 6502, 7780, 13004, 16255, 32510, 65020, 1264639, 2529278, 5058556, 6323195, 12646390, 25292780]

約数ペア:

[(1, 25292780), (2, 12646390), (4, 6323195), (5, 5058556), (10, 2529278), (20, 1264639), (389, 65020), (778, 32510), (1556, 16255), (1945, 13004), (3251, 7780), (3890, 6502)]