81325860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{607}}^1$

素因数の和:666

約数の個数: 192

約数和(自身を含む): 294174720

約数和(自身を除く): 212848860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 29, 30, 33, 35, 42, 44, 55, 58, 60, 66, 70, 77, 84, 87, 105, 110, 116, 132, 140, 145, 154, 165, 174, 203, 210, 220, 231, 290, 308, 319, 330, 348, 385, 406, 420, 435, 462, 580, 607, 609, 638, 660, 770, 812, 870, 924, 957, 1015, 1155, 1214, 1218, 1276, 1540, 1595, 1740, 1821, 1914, 2030, 2233, 2310, 2428, 2436, 3035, 3045, 3190, 3642, 3828, 4060, 4249, 4466, 4620, 4785, 6070, 6090, 6380, 6677, 6699, 7284, 8498, 8932, 9105, 9570, 11165, 12140, 12180, 12747, 13354, 13398, 16996, 17603, 18210, 19140, 20031, 21245, 22330, 25494, 26708, 26796, 33385, 33495, 35206, 36420, 40062, 42490, 44660, 46739, 50988, 52809, 63735, 66770, 66990, 70412, 80124, 84980, 88015, 93478, 100155, 105618, 123221, 127470, 133540, 133980, 140217, 176030, 186956, 193633, 200310, 211236, 233695, 246442, 254940, 264045, 280434, 352060, 369663, 387266, 400620, 467390, 492884, 528090, 560868, 580899, 616105, 701085, 739326, 774532, 934780, 968165, 1056180, 1161798, 1232210, 1355431, 1402170, 1478652, 1848315, 1936330, 2323596, 2464420, 2710862, 2804340, 2904495, 3696630, 3872660, 4066293, 5421724, 5808990, 6777155, 7393260, 8132586, 11617980, 13554310, 16265172, 20331465, 27108620, 40662930, 81325860]

約数ペア:

[(1, 81325860), (2, 40662930), (3, 27108620), (4, 20331465), (5, 16265172), (6, 13554310), (7, 11617980), (10, 8132586), (11, 7393260), (12, 6777155), (14, 5808990), (15, 5421724), (20, 4066293), (21, 3872660), (22, 3696630), (28, 2904495), (29, 2804340), (30, 2710862), (33, 2464420), (35, 2323596), (42, 1936330), (44, 1848315), (55, 1478652), (58, 1402170), (60, 1355431), (66, 1232210), (70, 1161798), (77, 1056180), (84, 968165), (87, 934780), (105, 774532), (110, 739326), (116, 701085), (132, 616105), (140, 580899), (145, 560868), (154, 528090), (165, 492884), (174, 467390), (203, 400620), (210, 387266), (220, 369663), (231, 352060), (290, 280434), (308, 264045), (319, 254940), (330, 246442), (348, 233695), (385, 211236), (406, 200310), (420, 193633), (435, 186956), (462, 176030), (580, 140217), (607, 133980), (609, 133540), (638, 127470), (660, 123221), (770, 105618), (812, 100155), (870, 93478), (924, 88015), (957, 84980), (1015, 80124), (1155, 70412), (1214, 66990), (1218, 66770), (1276, 63735), (1540, 52809), (1595, 50988), (1740, 46739), (1821, 44660), (1914, 42490), (2030, 40062), (2233, 36420), (2310, 35206), (2428, 33495), (2436, 33385), (3035, 26796), (3045, 26708), (3190, 25494), (3642, 22330), (3828, 21245), (4060, 20031), (4249, 19140), (4466, 18210), (4620, 17603), (4785, 16996), (6070, 13398), (6090, 13354), (6380, 12747), (6677, 12180), (6699, 12140), (7284, 11165), (8498, 9570), (8932, 9105)]