118815640

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{16411}}^1$

素因数の和:16603

約数の個数: 32

約数和(自身を含む): 268828560

約数和(自身を除く): 150012920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 16411, 32822, 65644, 82055, 131288, 164110, 328220, 656440, 2970391, 5940782, 11881564, 14851955, 23763128, 29703910, 59407820, 118815640]

約数ペア:

[(1, 118815640), (2, 59407820), (4, 29703910), (5, 23763128), (8, 14851955), (10, 11881564), (20, 5940782), (40, 2970391), (181, 656440), (362, 328220), (724, 164110), (905, 131288), (1448, 82055), (1810, 65644), (3620, 32822), (7240, 16411)]