18893800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5557}}^1$

素因数の和:5590

約数の個数: 48

約数和(自身を含む): 46520460

約数和(自身を除く): 27626660

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 680, 850, 1700, 3400, 5557, 11114, 22228, 27785, 44456, 55570, 94469, 111140, 138925, 188938, 222280, 277850, 377876, 472345, 555700, 755752, 944690, 1111400, 1889380, 2361725, 3778760, 4723450, 9446900, 18893800]

約数ペア:

[(1, 18893800), (2, 9446900), (4, 4723450), (5, 3778760), (8, 2361725), (10, 1889380), (17, 1111400), (20, 944690), (25, 755752), (34, 555700), (40, 472345), (50, 377876), (68, 277850), (85, 222280), (100, 188938), (136, 138925), (170, 111140), (200, 94469), (340, 55570), (425, 44456), (680, 27785), (850, 22228), (1700, 11114), (3400, 5557)]