1220306290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{2490421}}^1$

素因数の和:2490442

約数の個数: 24

約数和(自身を含む): 2555172972

約数和(自身を除く): 1334866682

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 2490421, 4980842, 12452105, 17432947, 24904210, 34865894, 87164735, 122030629, 174329470, 244061258, 610153145, 1220306290]

約数ペア:

[(1, 1220306290), (2, 610153145), (5, 244061258), (7, 174329470), (10, 122030629), (14, 87164735), (35, 34865894), (49, 24904210), (70, 17432947), (98, 12452105), (245, 4980842), (490, 2490421)]