280438420

素因数分解:

$2^2\times 5^1\times {\mathrm{751}}^1\times {\mathrm{18671}}^1$

素因数の和:19431

約数の個数: 24

約数和(自身を含む): 589736448

約数和(自身を除く): 309298028

約数列:

[1, 2, 4, 5, 10, 20, 751, 1502, 3004, 3755, 7510, 15020, 18671, 37342, 74684, 93355, 186710, 373420, 14021921, 28043842, 56087684, 70109605, 140219210, 280438420]

約数ペア:

[(1, 280438420), (2, 140219210), (4, 70109605), (5, 56087684), (10, 28043842), (20, 14021921), (751, 373420), (1502, 186710), (3004, 93355), (3755, 74684), (7510, 37342), (15020, 18671)]