23920040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{13907}}^1$

素因数の和:13961

約数の個数: 32

約数和(自身を含む): 55075680

約数和(自身を除く): 31155640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 13907, 27814, 55628, 69535, 111256, 139070, 278140, 556280, 598001, 1196002, 2392004, 2990005, 4784008, 5980010, 11960020, 23920040]

約数ペア:

[(1, 23920040), (2, 11960020), (4, 5980010), (5, 4784008), (8, 2990005), (10, 2392004), (20, 1196002), (40, 598001), (43, 556280), (86, 278140), (172, 139070), (215, 111256), (344, 69535), (430, 55628), (860, 27814), (1720, 13907)]