81931080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8867}}^1$

素因数の和:8899

約数の個数: 128

約数和(自身を含む): 306478080

約数和(自身を除く): 224547000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 8867, 9240, 17734, 26601, 35468, 44335, 53202, 62069, 70936, 88670, 97537, 106404, 124138, 133005, 177340, 186207, 195074, 212808, 248276, 266010, 292611, 310345, 354680, 372414, 390148, 487685, 496552, 532020, 585222, 620690, 682759, 744828, 780296, 931035, 975370, 1064040, 1170444, 1241380, 1365518, 1463055, 1489656, 1862070, 1950740, 2048277, 2340888, 2482760, 2731036, 2926110, 3413795, 3724140, 3901480, 4096554, 5462072, 5852220, 6827590, 7448280, 8193108, 10241385, 11704440, 13655180, 16386216, 20482770, 27310360, 40965540, 81931080]

約数ペア:

[(1, 81931080), (2, 40965540), (3, 27310360), (4, 20482770), (5, 16386216), (6, 13655180), (7, 11704440), (8, 10241385), (10, 8193108), (11, 7448280), (12, 6827590), (14, 5852220), (15, 5462072), (20, 4096554), (21, 3901480), (22, 3724140), (24, 3413795), (28, 2926110), (30, 2731036), (33, 2482760), (35, 2340888), (40, 2048277), (42, 1950740), (44, 1862070), (55, 1489656), (56, 1463055), (60, 1365518), (66, 1241380), (70, 1170444), (77, 1064040), (84, 975370), (88, 931035), (105, 780296), (110, 744828), (120, 682759), (132, 620690), (140, 585222), (154, 532020), (165, 496552), (168, 487685), (210, 390148), (220, 372414), (231, 354680), (264, 310345), (280, 292611), (308, 266010), (330, 248276), (385, 212808), (420, 195074), (440, 186207), (462, 177340), (616, 133005), (660, 124138), (770, 106404), (840, 97537), (924, 88670), (1155, 70936), (1320, 62069), (1540, 53202), (1848, 44335), (2310, 35468), (3080, 26601), (4620, 17734), (8867, 9240)]