21197000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:120

約数の個数: 128

約数和(自身を含む): 56609280

約数和(自身を除く): 35412280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 41, 44, 47, 50, 55, 82, 88, 94, 100, 110, 125, 164, 188, 200, 205, 220, 235, 250, 275, 328, 376, 410, 440, 451, 470, 500, 517, 550, 820, 902, 940, 1000, 1025, 1034, 1100, 1175, 1375, 1640, 1804, 1880, 1927, 2050, 2068, 2200, 2255, 2350, 2585, 2750, 3608, 3854, 4100, 4136, 4510, 4700, 5125, 5170, 5500, 5875, 7708, 8200, 9020, 9400, 9635, 10250, 10340, 11000, 11275, 11750, 12925, 15416, 18040, 19270, 20500, 20680, 21197, 22550, 23500, 25850, 38540, 41000, 42394, 45100, 47000, 48175, 51700, 56375, 64625, 77080, 84788, 90200, 96350, 103400, 105985, 112750, 129250, 169576, 192700, 211970, 225500, 240875, 258500, 385400, 423940, 451000, 481750, 517000, 529925, 847880, 963500, 1059850, 1927000, 2119700, 2649625, 4239400, 5299250, 10598500, 21197000]

約数ペア:

[(1, 21197000), (2, 10598500), (4, 5299250), (5, 4239400), (8, 2649625), (10, 2119700), (11, 1927000), (20, 1059850), (22, 963500), (25, 847880), (40, 529925), (41, 517000), (44, 481750), (47, 451000), (50, 423940), (55, 385400), (82, 258500), (88, 240875), (94, 225500), (100, 211970), (110, 192700), (125, 169576), (164, 129250), (188, 112750), (200, 105985), (205, 103400), (220, 96350), (235, 90200), (250, 84788), (275, 77080), (328, 64625), (376, 56375), (410, 51700), (440, 48175), (451, 47000), (470, 45100), (500, 42394), (517, 41000), (550, 38540), (820, 25850), (902, 23500), (940, 22550), (1000, 21197), (1025, 20680), (1034, 20500), (1100, 19270), (1175, 18040), (1375, 15416), (1640, 12925), (1804, 11750), (1880, 11275), (1927, 11000), (2050, 10340), (2068, 10250), (2200, 9635), (2255, 9400), (2350, 9020), (2585, 8200), (2750, 7708), (3608, 5875), (3854, 5500), (4100, 5170), (4136, 5125), (4510, 4700)]