81231040

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:566

約数の個数: 112

約数和(自身を含む): 215944704

約数和(自身を除く): 134713664

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 64, 80, 88, 94, 110, 160, 176, 188, 220, 235, 320, 352, 376, 440, 470, 491, 517, 704, 752, 880, 940, 982, 1034, 1504, 1760, 1880, 1964, 2068, 2455, 2585, 3008, 3520, 3760, 3928, 4136, 4910, 5170, 5401, 7520, 7856, 8272, 9820, 10340, 10802, 15040, 15712, 16544, 19640, 20680, 21604, 23077, 27005, 31424, 33088, 39280, 41360, 43208, 46154, 54010, 78560, 82720, 86416, 92308, 108020, 115385, 157120, 165440, 172832, 184616, 216040, 230770, 253847, 345664, 369232, 432080, 461540, 507694, 738464, 864160, 923080, 1015388, 1269235, 1476928, 1728320, 1846160, 2030776, 2538470, 3692320, 4061552, 5076940, 7384640, 8123104, 10153880, 16246208, 20307760, 40615520, 81231040]

約数ペア:

[(1, 81231040), (2, 40615520), (4, 20307760), (5, 16246208), (8, 10153880), (10, 8123104), (11, 7384640), (16, 5076940), (20, 4061552), (22, 3692320), (32, 2538470), (40, 2030776), (44, 1846160), (47, 1728320), (55, 1476928), (64, 1269235), (80, 1015388), (88, 923080), (94, 864160), (110, 738464), (160, 507694), (176, 461540), (188, 432080), (220, 369232), (235, 345664), (320, 253847), (352, 230770), (376, 216040), (440, 184616), (470, 172832), (491, 165440), (517, 157120), (704, 115385), (752, 108020), (880, 92308), (940, 86416), (982, 82720), (1034, 78560), (1504, 54010), (1760, 46154), (1880, 43208), (1964, 41360), (2068, 39280), (2455, 33088), (2585, 31424), (3008, 27005), (3520, 23077), (3760, 21604), (3928, 20680), (4136, 19640), (4910, 16544), (5170, 15712), (5401, 15040), (7520, 10802), (7856, 10340), (8272, 9820)]