266778040

素因数分解:

$2^3\times 5^1\times {\mathrm{6669451}}^1$

素因数の和:6669462

約数の個数: 16

約数和(自身を含む): 600250680

約数和(自身を除く): 333472640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6669451, 13338902, 26677804, 33347255, 53355608, 66694510, 133389020, 266778040]

約数ペア:

[(1, 266778040), (2, 133389020), (4, 66694510), (5, 53355608), (8, 33347255), (10, 26677804), (20, 13338902), (40, 6669451)]