2911000

素因数分解:

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

素因数の和:133

約数の個数: 64

約数和(自身を含む): 7076160

約数和(自身を除く): 4165160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 71, 82, 100, 125, 142, 164, 200, 205, 250, 284, 328, 355, 410, 500, 568, 710, 820, 1000, 1025, 1420, 1640, 1775, 2050, 2840, 2911, 3550, 4100, 5125, 5822, 7100, 8200, 8875, 10250, 11644, 14200, 14555, 17750, 20500, 23288, 29110, 35500, 41000, 58220, 71000, 72775, 116440, 145550, 291100, 363875, 582200, 727750, 1455500, 2911000]

約数ペア:

[(1, 2911000), (2, 1455500), (4, 727750), (5, 582200), (8, 363875), (10, 291100), (20, 145550), (25, 116440), (40, 72775), (41, 71000), (50, 58220), (71, 41000), (82, 35500), (100, 29110), (125, 23288), (142, 20500), (164, 17750), (200, 14555), (205, 14200), (250, 11644), (284, 10250), (328, 8875), (355, 8200), (410, 7100), (500, 5822), (568, 5125), (710, 4100), (820, 3550), (1000, 2911), (1025, 2840), (1420, 2050), (1640, 1775)]