3128980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1549}}^1$

素因数の和:1659

約数の個数: 24

約数和(自身を含む): 6640200

約数和(自身を除く): 3511220

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1549, 2020, 3098, 6196, 7745, 15490, 30980, 156449, 312898, 625796, 782245, 1564490, 3128980]

約数ペア:

[(1, 3128980), (2, 1564490), (4, 782245), (5, 625796), (10, 312898), (20, 156449), (101, 30980), (202, 15490), (404, 7745), (505, 6196), (1010, 3098), (1549, 2020)]