8500120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 20139840

約数和(自身を除く): 11639720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 73, 82, 142, 146, 164, 205, 284, 292, 328, 355, 365, 410, 568, 584, 710, 730, 820, 1420, 1460, 1640, 2840, 2911, 2920, 2993, 5183, 5822, 5986, 10366, 11644, 11972, 14555, 14965, 20732, 23288, 23944, 25915, 29110, 29930, 41464, 51830, 58220, 59860, 103660, 116440, 119720, 207320, 212503, 425006, 850012, 1062515, 1700024, 2125030, 4250060, 8500120]

約数ペア:

[(1, 8500120), (2, 4250060), (4, 2125030), (5, 1700024), (8, 1062515), (10, 850012), (20, 425006), (40, 212503), (41, 207320), (71, 119720), (73, 116440), (82, 103660), (142, 59860), (146, 58220), (164, 51830), (205, 41464), (284, 29930), (292, 29110), (328, 25915), (355, 23944), (365, 23288), (410, 20732), (568, 14965), (584, 14555), (710, 11972), (730, 11644), (820, 10366), (1420, 5986), (1460, 5822), (1640, 5183), (2840, 2993), (2911, 2920)]