25405180

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7793}}^1$

素因数の和:7965

約数の個数: 24

約数和(自身を含む): 53685072

約数和(自身を除く): 28279892

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 7793, 15586, 31172, 38965, 77930, 155860, 1270259, 2540518, 5081036, 6351295, 12702590, 25405180]

約数ペア:

[(1, 25405180), (2, 12702590), (4, 6351295), (5, 5081036), (10, 2540518), (20, 1270259), (163, 155860), (326, 77930), (652, 38965), (815, 31172), (1630, 15586), (3260, 7793)]