12885580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6379}}^1$

素因数の和:6489

約数の個数: 24

約数和(自身を含む): 27331920

約数和(自身を除く): 14446340

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 6379, 12758, 25516, 31895, 63790, 127580, 644279, 1288558, 2577116, 3221395, 6442790, 12885580]

約数ペア:

[(1, 12885580), (2, 6442790), (4, 3221395), (5, 2577116), (10, 1288558), (20, 644279), (101, 127580), (202, 63790), (404, 31895), (505, 25516), (1010, 12758), (2020, 6379)]