18925850

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4253}}^1$

素因数の和:4354

約数の個数: 24

約数和(自身を含む): 35605980

約数和(自身を除く): 16680130

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4253, 4450, 8506, 21265, 42530, 106325, 212650, 378517, 757034, 1892585, 3785170, 9462925, 18925850]

約数ペア:

[(1, 18925850), (2, 9462925), (5, 3785170), (10, 1892585), (25, 757034), (50, 378517), (89, 212650), (178, 106325), (445, 42530), (890, 21265), (2225, 8506), (4253, 4450)]