20181160

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2111}}^1$

素因数の和:2361

約数の個数: 32

約数和(自身を含む): 45619200

約数和(自身を除く): 25438040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2111, 2390, 4222, 4780, 8444, 9560, 10555, 16888, 21110, 42220, 84440, 504529, 1009058, 2018116, 2522645, 4036232, 5045290, 10090580, 20181160]

約数ペア:

[(1, 20181160), (2, 10090580), (4, 5045290), (5, 4036232), (8, 2522645), (10, 2018116), (20, 1009058), (40, 504529), (239, 84440), (478, 42220), (956, 21110), (1195, 16888), (1912, 10555), (2111, 9560), (2390, 8444), (4222, 4780)]