81316620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5867}}^1$

素因数の和:5900

約数の個数: 144

約数和(自身を含む): 307577088

約数和(自身を除く): 226260468

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1540, 1980, 2310, 2772, 3465, 4620, 5867, 6930, 11734, 13860, 17601, 23468, 29335, 35202, 41069, 52803, 58670, 64537, 70404, 82138, 88005, 105606, 117340, 123207, 129074, 164276, 176010, 193611, 205345, 211212, 246414, 258148, 264015, 322685, 352020, 369621, 387222, 410690, 451759, 492828, 528030, 580833, 616035, 645370, 739242, 774444, 821380, 903518, 968055, 1056060, 1161666, 1232070, 1290740, 1355277, 1478484, 1807036, 1848105, 1936110, 2258795, 2323332, 2464140, 2710554, 2904165, 3696210, 3872220, 4065831, 4517590, 5421108, 5808330, 6776385, 7392420, 8131662, 9035180, 11616660, 13552770, 16263324, 20329155, 27105540, 40658310, 81316620]

約数ペア:

[(1, 81316620), (2, 40658310), (3, 27105540), (4, 20329155), (5, 16263324), (6, 13552770), (7, 11616660), (9, 9035180), (10, 8131662), (11, 7392420), (12, 6776385), (14, 5808330), (15, 5421108), (18, 4517590), (20, 4065831), (21, 3872220), (22, 3696210), (28, 2904165), (30, 2710554), (33, 2464140), (35, 2323332), (36, 2258795), (42, 1936110), (44, 1848105), (45, 1807036), (55, 1478484), (60, 1355277), (63, 1290740), (66, 1232070), (70, 1161666), (77, 1056060), (84, 968055), (90, 903518), (99, 821380), (105, 774444), (110, 739242), (126, 645370), (132, 616035), (140, 580833), (154, 528030), (165, 492828), (180, 451759), (198, 410690), (210, 387222), (220, 369621), (231, 352020), (252, 322685), (308, 264015), (315, 258148), (330, 246414), (385, 211212), (396, 205345), (420, 193611), (462, 176010), (495, 164276), (630, 129074), (660, 123207), (693, 117340), (770, 105606), (924, 88005), (990, 82138), (1155, 70404), (1260, 64537), (1386, 58670), (1540, 52803), (1980, 41069), (2310, 35202), (2772, 29335), (3465, 23468), (4620, 17601), (5867, 13860), (6930, 11734)]