80655880

素因数分解:

$2^3\times 5^1\times {\mathrm{2016397}}^1$

素因数の和:2016408

約数の個数: 16

約数和(自身を含む): 181475820

約数和(自身を除く): 100819940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2016397, 4032794, 8065588, 10081985, 16131176, 20163970, 40327940, 80655880]

約数ペア:

[(1, 80655880), (2, 40327940), (4, 20163970), (5, 16131176), (8, 10081985), (10, 8065588), (20, 4032794), (40, 2016397)]