80994020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{68639}}^1$

素因数の和:68707

約数の個数: 24

約数和(自身を含む): 172972800

約数和(自身を除く): 91978780

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 68639, 137278, 274556, 343195, 686390, 1372780, 4049701, 8099402, 16198804, 20248505, 40497010, 80994020]

約数ペア:

[(1, 80994020), (2, 40497010), (4, 20248505), (5, 16198804), (10, 8099402), (20, 4049701), (59, 1372780), (118, 686390), (236, 343195), (295, 274556), (590, 137278), (1180, 68639)]