68905640

素因数分解:

$2^3\times 5^1\times {\mathrm{827}}^1\times {\mathrm{2083}}^1$

素因数の和:2921

約数の個数: 32

約数和(自身を含む): 155299680

約数和(自身を除く): 86394040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 827, 1654, 2083, 3308, 4135, 4166, 6616, 8270, 8332, 10415, 16540, 16664, 20830, 33080, 41660, 83320, 1722641, 3445282, 6890564, 8613205, 13781128, 17226410, 34452820, 68905640]

約数ペア:

[(1, 68905640), (2, 34452820), (4, 17226410), (5, 13781128), (8, 8613205), (10, 6890564), (20, 3445282), (40, 1722641), (827, 83320), (1654, 41660), (2083, 33080), (3308, 20830), (4135, 16664), (4166, 16540), (6616, 10415), (8270, 8332)]