71690960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1987}}^1$

素因数の和:2052

約数の個数: 80

約数和(自身を含む): 186363072

約数和(自身を除く): 114672112

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 656, 820, 880, 902, 1640, 1804, 1987, 2255, 3280, 3608, 3974, 4510, 7216, 7948, 9020, 9935, 15896, 18040, 19870, 21857, 31792, 36080, 39740, 43714, 79480, 81467, 87428, 109285, 158960, 162934, 174856, 218570, 325868, 349712, 407335, 437140, 651736, 814670, 874280, 896137, 1303472, 1629340, 1748560, 1792274, 3258680, 3584548, 4480685, 6517360, 7169096, 8961370, 14338192, 17922740, 35845480, 71690960]

約数ペア:

[(1, 71690960), (2, 35845480), (4, 17922740), (5, 14338192), (8, 8961370), (10, 7169096), (11, 6517360), (16, 4480685), (20, 3584548), (22, 3258680), (40, 1792274), (41, 1748560), (44, 1629340), (55, 1303472), (80, 896137), (82, 874280), (88, 814670), (110, 651736), (164, 437140), (176, 407335), (205, 349712), (220, 325868), (328, 218570), (410, 174856), (440, 162934), (451, 158960), (656, 109285), (820, 87428), (880, 81467), (902, 79480), (1640, 43714), (1804, 39740), (1987, 36080), (2255, 31792), (3280, 21857), (3608, 19870), (3974, 18040), (4510, 15896), (7216, 9935), (7948, 9020)]