51451420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{25471}}^1$

素因数の和:25581

約数の個数: 24

約数和(自身を含む): 109122048

約数和(自身を除く): 57670628

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 25471, 50942, 101884, 127355, 254710, 509420, 2572571, 5145142, 10290284, 12862855, 25725710, 51451420]

約数ペア:

[(1, 51451420), (2, 25725710), (4, 12862855), (5, 10290284), (10, 5145142), (20, 2572571), (101, 509420), (202, 254710), (404, 127355), (505, 101884), (1010, 50942), (2020, 25471)]