15882640

素因数分解:

$2^4\times 5^1\times {\mathrm{198533}}^1$

素因数の和:198546

約数の個数: 20

約数和(自身を含む): 36927324

約数和(自身を除く): 21044684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198533, 397066, 794132, 992665, 1588264, 1985330, 3176528, 3970660, 7941320, 15882640]

約数ペア:

[(1, 15882640), (2, 7941320), (4, 3970660), (5, 3176528), (8, 1985330), (10, 1588264), (16, 992665), (20, 794132), (40, 397066), (80, 198533)]