80518940

素因数分解:

$2^2\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{3319}}^1$

素因数の和:4541

約数の個数: 24

約数和(自身を含む): 169280160

約数和(自身を除く): 88761220

約数列:

[1, 2, 4, 5, 10, 20, 1213, 2426, 3319, 4852, 6065, 6638, 12130, 13276, 16595, 24260, 33190, 66380, 4025947, 8051894, 16103788, 20129735, 40259470, 80518940]

約数ペア:

[(1, 80518940), (2, 40259470), (4, 20129735), (5, 16103788), (10, 8051894), (20, 4025947), (1213, 66380), (2426, 33190), (3319, 24260), (4852, 16595), (6065, 13276), (6638, 12130)]