28302580

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3529}}^1$

素因数の和:3939

約数の個数: 24

約数和(自身を含む): 59600520

約数和(自身を除く): 31297940

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 3529, 4010, 7058, 8020, 14116, 17645, 35290, 70580, 1415129, 2830258, 5660516, 7075645, 14151290, 28302580]

約数ペア:

[(1, 28302580), (2, 14151290), (4, 7075645), (5, 5660516), (10, 2830258), (20, 1415129), (401, 70580), (802, 35290), (1604, 17645), (2005, 14116), (3529, 8020), (4010, 7058)]