282640

素因数分解:

$2^4\times 5^1\times {\mathrm{3533}}^1$

素因数の和:3546

約数の個数: 20

約数和(自身を含む): 657324

約数和(自身を除く): 374684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3533, 7066, 14132, 17665, 28264, 35330, 56528, 70660, 141320, 282640]

約数ペア:

[(1, 282640), (2, 141320), (4, 70660), (5, 56528), (8, 35330), (10, 28264), (16, 17665), (20, 14132), (40, 7066), (80, 3533)]