42260420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20921}}^1$

素因数の和:21031

約数の個数: 24

約数和(自身を含む): 89629848

約数和(自身を除く): 47369428

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 20921, 41842, 83684, 104605, 209210, 418420, 2113021, 4226042, 8452084, 10565105, 21130210, 42260420]

約数ペア:

[(1, 42260420), (2, 21130210), (4, 10565105), (5, 8452084), (10, 4226042), (20, 2113021), (101, 418420), (202, 209210), (404, 104605), (505, 83684), (1010, 41842), (2020, 20921)]