66918680

素因数分解:

$2^3\times 5^1\times {\mathrm{1672967}}^1$

素因数の和:1672978

約数の個数: 16

約数和(自身を含む): 150567120

約数和(自身を除く): 83648440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1672967, 3345934, 6691868, 8364835, 13383736, 16729670, 33459340, 66918680]

約数ペア:

[(1, 66918680), (2, 33459340), (4, 16729670), (5, 13383736), (8, 8364835), (10, 6691868), (20, 3345934), (40, 1672967)]