2787955640

素因数分解:

$2^3\times 5^1\times {\mathrm{3181}}^1\times {\mathrm{21911}}^1$

素因数の和:25103

約数の個数: 32

約数和(自身を含む): 6275158560

約数和(自身を除く): 3487202920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3181, 6362, 12724, 15905, 21911, 25448, 31810, 43822, 63620, 87644, 109555, 127240, 175288, 219110, 438220, 876440, 69698891, 139397782, 278795564, 348494455, 557591128, 696988910, 1393977820, 2787955640]

約数ペア:

[(1, 2787955640), (2, 1393977820), (4, 696988910), (5, 557591128), (8, 348494455), (10, 278795564), (20, 139397782), (40, 69698891), (3181, 876440), (6362, 438220), (12724, 219110), (15905, 175288), (21911, 127240), (25448, 109555), (31810, 87644), (43822, 63620)]