20315350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{859}}^1$

素因数の和:925

約数の個数: 48

約数和(自身を含む): 42229440

約数和(自身を除く): 21914090

約数列:

[1, 2, 5, 10, 11, 22, 25, 43, 50, 55, 86, 110, 215, 275, 430, 473, 550, 859, 946, 1075, 1718, 2150, 2365, 4295, 4730, 8590, 9449, 11825, 18898, 21475, 23650, 36937, 42950, 47245, 73874, 94490, 184685, 236225, 369370, 406307, 472450, 812614, 923425, 1846850, 2031535, 4063070, 10157675, 20315350]

約数ペア:

[(1, 20315350), (2, 10157675), (5, 4063070), (10, 2031535), (11, 1846850), (22, 923425), (25, 812614), (43, 472450), (50, 406307), (55, 369370), (86, 236225), (110, 184685), (215, 94490), (275, 73874), (430, 47245), (473, 42950), (550, 36937), (859, 23650), (946, 21475), (1075, 18898), (1718, 11825), (2150, 9449), (2365, 8590), (4295, 4730)]