80105380

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{26881}}^1$

素因数の和:27039

約数の個数: 24

約数和(自身を含む): 169356600

約数和(自身を除く): 89251220

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 26881, 53762, 107524, 134405, 268810, 537620, 4005269, 8010538, 16021076, 20026345, 40052690, 80105380]

約数ペア:

[(1, 80105380), (2, 40052690), (4, 20026345), (5, 16021076), (10, 8010538), (20, 4005269), (149, 537620), (298, 268810), (596, 134405), (745, 107524), (1490, 53762), (2980, 26881)]