63996640

素因数分解:

$2^5\times 5^1\times {\mathrm{399979}}^1$

素因数の和:399994

約数の個数: 24

約数和(自身を含む): 151192440

約数和(自身を除く): 87195800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 399979, 799958, 1599916, 1999895, 3199832, 3999790, 6399664, 7999580, 12799328, 15999160, 31998320, 63996640]

約数ペア:

[(1, 63996640), (2, 31998320), (4, 15999160), (5, 12799328), (8, 7999580), (10, 6399664), (16, 3999790), (20, 3199832), (32, 1999895), (40, 1599916), (80, 799958), (160, 399979)]