20038960

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2341}}^1$

素因数の和:2461

約数の個数: 40

約数和(自身を含む): 47046096

約数和(自身を除く): 27007136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 2341, 4280, 4682, 8560, 9364, 11705, 18728, 23410, 37456, 46820, 93640, 187280, 250487, 500974, 1001948, 1252435, 2003896, 2504870, 4007792, 5009740, 10019480, 20038960]

約数ペア:

[(1, 20038960), (2, 10019480), (4, 5009740), (5, 4007792), (8, 2504870), (10, 2003896), (16, 1252435), (20, 1001948), (40, 500974), (80, 250487), (107, 187280), (214, 93640), (428, 46820), (535, 37456), (856, 23410), (1070, 18728), (1712, 11705), (2140, 9364), (2341, 8560), (4280, 4682)]