248288420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{174851}}^1$

素因数の和:174931

約数の個数: 24

約数和(自身を含む): 528752448

約数和(自身を除く): 280464028

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 174851, 349702, 699404, 874255, 1748510, 3497020, 12414421, 24828842, 49657684, 62072105, 124144210, 248288420]

約数ペア:

[(1, 248288420), (2, 124144210), (4, 62072105), (5, 49657684), (10, 24828842), (20, 12414421), (71, 3497020), (142, 1748510), (284, 874255), (355, 699404), (710, 349702), (1420, 174851)]