129675640

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{17911}}^1$

素因数の和:18103

約数の個数: 32

約数和(自身を含む): 293398560

約数和(自身を除く): 163722920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 17911, 35822, 71644, 89555, 143288, 179110, 358220, 716440, 3241891, 6483782, 12967564, 16209455, 25935128, 32418910, 64837820, 129675640]

約数ペア:

[(1, 129675640), (2, 64837820), (4, 32418910), (5, 25935128), (8, 16209455), (10, 12967564), (20, 6483782), (40, 3241891), (181, 716440), (362, 358220), (724, 179110), (905, 143288), (1448, 89555), (1810, 71644), (3620, 35822), (7240, 17911)]