80647640

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{12073}}^1$

素因数の和:12251

約数の個数: 32

約数和(自身を含む): 182558880

約数和(自身を除く): 101911240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3340, 6680, 12073, 24146, 48292, 60365, 96584, 120730, 241460, 482920, 2016191, 4032382, 8064764, 10080955, 16129528, 20161910, 40323820, 80647640]

約数ペア:

[(1, 80647640), (2, 40323820), (4, 20161910), (5, 16129528), (8, 10080955), (10, 8064764), (20, 4032382), (40, 2016191), (167, 482920), (334, 241460), (668, 120730), (835, 96584), (1336, 60365), (1670, 48292), (3340, 24146), (6680, 12073)]