28315980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1$

素因数の和:266

約数の個数: 240

約数和(自身を含む): 111234816

約数和(自身を除く): 82918836

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 81, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 162, 165, 180, 189, 198, 210, 220, 227, 231, 252, 270, 297, 308, 315, 324, 330, 378, 385, 396, 405, 420, 454, 462, 495, 540, 567, 594, 630, 660, 681, 693, 756, 770, 810, 891, 908, 924, 945, 990, 1134, 1135, 1155, 1188, 1260, 1362, 1386, 1485, 1540, 1589, 1620, 1782, 1890, 1980, 2043, 2079, 2268, 2270, 2310, 2497, 2724, 2772, 2835, 2970, 3178, 3405, 3465, 3564, 3780, 4086, 4158, 4455, 4540, 4620, 4767, 4994, 5670, 5940, 6129, 6237, 6356, 6810, 6930, 7491, 7945, 8172, 8316, 8910, 9534, 9988, 10215, 10395, 11340, 12258, 12474, 12485, 13620, 13860, 14301, 14982, 15890, 17479, 17820, 18387, 19068, 20430, 20790, 22473, 23835, 24516, 24948, 24970, 28602, 29964, 30645, 31185, 31780, 34958, 36774, 37455, 40860, 41580, 42903, 44946, 47670, 49940, 52437, 57204, 61290, 62370, 67419, 69916, 71505, 73548, 74910, 85806, 87395, 89892, 91935, 95340, 104874, 112365, 122580, 124740, 128709, 134838, 143010, 149820, 157311, 171612, 174790, 183870, 202257, 209748, 214515, 224730, 257418, 262185, 269676, 286020, 314622, 337095, 349580, 367740, 404514, 429030, 449460, 471933, 514836, 524370, 629244, 643545, 674190, 786555, 809028, 858060, 943866, 1011285, 1048740, 1287090, 1348380, 1415799, 1573110, 1887732, 2022570, 2359665, 2574180, 2831598, 3146220, 4045140, 4719330, 5663196, 7078995, 9438660, 14157990, 28315980]

約数ペア:

[(1, 28315980), (2, 14157990), (3, 9438660), (4, 7078995), (5, 5663196), (6, 4719330), (7, 4045140), (9, 3146220), (10, 2831598), (11, 2574180), (12, 2359665), (14, 2022570), (15, 1887732), (18, 1573110), (20, 1415799), (21, 1348380), (22, 1287090), (27, 1048740), (28, 1011285), (30, 943866), (33, 858060), (35, 809028), (36, 786555), (42, 674190), (44, 643545), (45, 629244), (54, 524370), (55, 514836), (60, 471933), (63, 449460), (66, 429030), (70, 404514), (77, 367740), (81, 349580), (84, 337095), (90, 314622), (99, 286020), (105, 269676), (108, 262185), (110, 257418), (126, 224730), (132, 214515), (135, 209748), (140, 202257), (154, 183870), (162, 174790), (165, 171612), (180, 157311), (189, 149820), (198, 143010), (210, 134838), (220, 128709), (227, 124740), (231, 122580), (252, 112365), (270, 104874), (297, 95340), (308, 91935), (315, 89892), (324, 87395), (330, 85806), (378, 74910), (385, 73548), (396, 71505), (405, 69916), (420, 67419), (454, 62370), (462, 61290), (495, 57204), (540, 52437), (567, 49940), (594, 47670), (630, 44946), (660, 42903), (681, 41580), (693, 40860), (756, 37455), (770, 36774), (810, 34958), (891, 31780), (908, 31185), (924, 30645), (945, 29964), (990, 28602), (1134, 24970), (1135, 24948), (1155, 24516), (1188, 23835), (1260, 22473), (1362, 20790), (1386, 20430), (1485, 19068), (1540, 18387), (1589, 17820), (1620, 17479), (1782, 15890), (1890, 14982), (1980, 14301), (2043, 13860), (2079, 13620), (2268, 12485), (2270, 12474), (2310, 12258), (2497, 11340), (2724, 10395), (2772, 10215), (2835, 9988), (2970, 9534), (3178, 8910), (3405, 8316), (3465, 8172), (3564, 7945), (3780, 7491), (4086, 6930), (4158, 6810), (4455, 6356), (4540, 6237), (4620, 6129), (4767, 5940), (4994, 5670)]