20018650

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9311}}^1$

素因数の和:9366

約数の個数: 24

約数和(自身を含む): 38104704

約数和(自身を除く): 18086054

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9311, 18622, 46555, 93110, 232775, 400373, 465550, 800746, 2001865, 4003730, 10009325, 20018650]

約数ペア:

[(1, 20018650), (2, 10009325), (5, 4003730), (10, 2001865), (25, 800746), (43, 465550), (50, 400373), (86, 232775), (215, 93110), (430, 46555), (1075, 18622), (2150, 9311)]