19888850

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{5449}}^1$

素因数の和:5534

約数の個数: 24

約数和(自身を含む): 37506900

約数和(自身を除く): 17618050

約数列:

[1, 2, 5, 10, 25, 50, 73, 146, 365, 730, 1825, 3650, 5449, 10898, 27245, 54490, 136225, 272450, 397777, 795554, 1988885, 3977770, 9944425, 19888850]

約数ペア:

[(1, 19888850), (2, 9944425), (5, 3977770), (10, 1988885), (25, 795554), (50, 397777), (73, 272450), (146, 136225), (365, 54490), (730, 27245), (1825, 10898), (3650, 5449)]