775683920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21499}}^1$

素因数の和:21564

約数の個数: 80

約数和(自身を含む): 2015496000

約数和(自身を除く): 1239812080

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, 2255, 3280, 3608, 4510, 7216, 9020, 18040, 21499, 36080, 42998, 85996, 107495, 171992, 214990, 236489, 343984, 429980, 472978, 859960, 881459, 945956, 1182445, 1719920, 1762918, 1891912, 2364890, 3525836, 3783824, 4407295, 4729780, 7051672, 8814590, 9459560, 9696049, 14103344, 17629180, 18919120, 19392098, 35258360, 38784196, 48480245, 70516720, 77568392, 96960490, 155136784, 193920980, 387841960, 775683920]

約数ペア:

[(1, 775683920), (2, 387841960), (4, 193920980), (5, 155136784), (8, 96960490), (10, 77568392), (11, 70516720), (16, 48480245), (20, 38784196), (22, 35258360), (40, 19392098), (41, 18919120), (44, 17629180), (55, 14103344), (80, 9696049), (82, 9459560), (88, 8814590), (110, 7051672), (164, 4729780), (176, 4407295), (205, 3783824), (220, 3525836), (328, 2364890), (410, 1891912), (440, 1762918), (451, 1719920), (656, 1182445), (820, 945956), (880, 881459), (902, 859960), (1640, 472978), (1804, 429980), (2255, 343984), (3280, 236489), (3608, 214990), (4510, 171992), (7216, 107495), (9020, 85996), (18040, 42998), (21499, 36080)]