8267240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^2$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 19327140

約数和(自身を除く): 11059900

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 568, 710, 820, 1420, 1640, 2840, 2911, 5041, 5822, 10082, 11644, 14555, 20164, 23288, 25205, 29110, 40328, 50410, 58220, 100820, 116440, 201640, 206681, 413362, 826724, 1033405, 1653448, 2066810, 4133620, 8267240]

約数ペア:

[(1, 8267240), (2, 4133620), (4, 2066810), (5, 1653448), (8, 1033405), (10, 826724), (20, 413362), (40, 206681), (41, 201640), (71, 116440), (82, 100820), (142, 58220), (164, 50410), (205, 40328), (284, 29110), (328, 25205), (355, 23288), (410, 20164), (568, 14555), (710, 11644), (820, 10082), (1420, 5822), (1640, 5041), (2840, 2911)]