18478160

素因数分解:

$2^4\times 5^1\times {\mathrm{230977}}^1$

素因数の和:230990

約数の個数: 20

約数和(自身を含む): 42961908

約数和(自身を除く): 24483748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230977, 461954, 923908, 1154885, 1847816, 2309770, 3695632, 4619540, 9239080, 18478160]

約数ペア:

[(1, 18478160), (2, 9239080), (4, 4619540), (5, 3695632), (8, 2309770), (10, 1847816), (16, 1154885), (20, 923908), (40, 461954), (80, 230977)]