216140

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 462672

約数和(自身を除く): 246532

約数列:

[1, 2, 4, 5, 10, 20, 101, 107, 202, 214, 404, 428, 505, 535, 1010, 1070, 2020, 2140, 10807, 21614, 43228, 54035, 108070, 216140]

約数ペア:

[(1, 216140), (2, 108070), (4, 54035), (5, 43228), (10, 21614), (20, 10807), (101, 2140), (107, 2020), (202, 1070), (214, 1010), (404, 535), (428, 505)]