18939160

素因数分解:

$2^3\times 5^1\times {\mathrm{473479}}^1$

素因数の和:473490

約数の個数: 16

約数和(自身を含む): 42613200

約数和(自身を除く): 23674040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 473479, 946958, 1893916, 2367395, 3787832, 4734790, 9469580, 18939160]

約数ペア:

[(1, 18939160), (2, 9469580), (4, 4734790), (5, 3787832), (8, 2367395), (10, 1893916), (20, 946958), (40, 473479)]