20166680

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2221}}^1$

素因数の和:2459

約数の個数: 32

約数和(自身を含む): 45595440

約数和(自身を除く): 25428760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2221, 2270, 4442, 4540, 8884, 9080, 11105, 17768, 22210, 44420, 88840, 504167, 1008334, 2016668, 2520835, 4033336, 5041670, 10083340, 20166680]

約数ペア:

[(1, 20166680), (2, 10083340), (4, 5041670), (5, 4033336), (8, 2520835), (10, 2016668), (20, 1008334), (40, 504167), (227, 88840), (454, 44420), (908, 22210), (1135, 17768), (1816, 11105), (2221, 9080), (2270, 8884), (4442, 4540)]