19120040

素因数分解:

$2^3\times 5^1\times {\mathrm{478001}}^1$

素因数の和:478012

約数の個数: 16

約数和(自身を含む): 43020180

約数和(自身を除く): 23900140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 478001, 956002, 1912004, 2390005, 3824008, 4780010, 9560020, 19120040]

約数ペア:

[(1, 19120040), (2, 9560020), (4, 4780010), (5, 3824008), (8, 2390005), (10, 1912004), (20, 956002), (40, 478001)]