20180172860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{933403}}^1$

素因数の和:933482

約数の個数: 48

約数和(自身を含む): 45161819136

約数和(自身を除く): 24981646276

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 2162, 4324, 5405, 10810, 21620, 933403, 1866806, 3733612, 4667015, 9334030, 18668060, 21468269, 42936538, 43869941, 85873076, 87739882, 107341345, 175479764, 214682690, 219349705, 429365380, 438699410, 877398820, 1009008643, 2018017286, 4036034572, 5045043215, 10090086430, 20180172860]

約数ペア:

[(1, 20180172860), (2, 10090086430), (4, 5045043215), (5, 4036034572), (10, 2018017286), (20, 1009008643), (23, 877398820), (46, 438699410), (47, 429365380), (92, 219349705), (94, 214682690), (115, 175479764), (188, 107341345), (230, 87739882), (235, 85873076), (460, 43869941), (470, 42936538), (940, 21468269), (1081, 18668060), (2162, 9334030), (4324, 4667015), (5405, 3733612), (10810, 1866806), (21620, 933403)]