316640

素因数分解:

$2^5\times 5^1\times {\mathrm{1979}}^1$

素因数の和:1994

約数の個数: 24

約数和(自身を含む): 748440

約数和(自身を除く): 431800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1979, 3958, 7916, 9895, 15832, 19790, 31664, 39580, 63328, 79160, 158320, 316640]

約数ペア:

[(1, 316640), (2, 158320), (4, 79160), (5, 63328), (8, 39580), (10, 31664), (16, 19790), (20, 15832), (32, 9895), (40, 7916), (80, 3958), (160, 1979)]