17818420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{8821}}^1$

素因数の和:8931

約数の個数: 24

約数和(自身を含む): 37793448

約数和(自身を除く): 19975028

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 8821, 17642, 35284, 44105, 88210, 176420, 890921, 1781842, 3563684, 4454605, 8909210, 17818420]

約数ペア:

[(1, 17818420), (2, 8909210), (4, 4454605), (5, 3563684), (10, 1781842), (20, 890921), (101, 176420), (202, 88210), (404, 44105), (505, 35284), (1010, 17642), (2020, 8821)]