31642640

素因数分解:

$2^4\times 5^1\times {\mathrm{395533}}^1$

素因数の和:395546

約数の個数: 20

約数和(自身を含む): 73569324

約数和(自身を除く): 41926684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 395533, 791066, 1582132, 1977665, 3164264, 3955330, 6328528, 7910660, 15821320, 31642640]

約数ペア:

[(1, 31642640), (2, 15821320), (4, 7910660), (5, 6328528), (8, 3955330), (10, 3164264), (16, 1977665), (20, 1582132), (40, 791066), (80, 395533)]