906980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 1927800

約数和(自身を除く): 1020820

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 449, 505, 898, 1010, 1796, 2020, 2245, 4490, 8980, 45349, 90698, 181396, 226745, 453490, 906980]

約数ペア:

[(1, 906980), (2, 453490), (4, 226745), (5, 181396), (10, 90698), (20, 45349), (101, 8980), (202, 4490), (404, 2245), (449, 2020), (505, 1796), (898, 1010)]