81499968

素因数分解:

$2^6\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:725

約数の個数: 168

約数和(自身を含む): 268650720

約数和(自身を除く): 187150752

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 19, 22, 24, 32, 33, 36, 38, 44, 48, 57, 64, 66, 72, 76, 88, 96, 99, 114, 132, 144, 152, 171, 176, 192, 198, 209, 228, 264, 288, 304, 342, 352, 396, 418, 456, 528, 576, 608, 627, 677, 684, 704, 792, 836, 912, 1056, 1216, 1254, 1354, 1368, 1584, 1672, 1824, 1881, 2031, 2112, 2508, 2708, 2736, 3168, 3344, 3648, 3762, 4062, 5016, 5416, 5472, 6093, 6336, 6688, 7447, 7524, 8124, 10032, 10832, 10944, 12186, 12863, 13376, 14894, 15048, 16248, 20064, 21664, 22341, 24372, 25726, 29788, 30096, 32496, 38589, 40128, 43328, 44682, 48744, 51452, 59576, 60192, 64992, 67023, 77178, 89364, 97488, 102904, 115767, 119152, 120384, 129984, 134046, 141493, 154356, 178728, 194976, 205808, 231534, 238304, 268092, 282986, 308712, 357456, 389952, 411616, 424479, 463068, 476608, 536184, 565972, 617424, 714912, 823232, 848958, 926136, 1072368, 1131944, 1234848, 1273437, 1429824, 1697916, 1852272, 2144736, 2263888, 2469696, 2546874, 3395832, 3704544, 4289472, 4527776, 5093748, 6791664, 7409088, 9055552, 10187496, 13583328, 20374992, 27166656, 40749984, 81499968]

約数ペア:

[(1, 81499968), (2, 40749984), (3, 27166656), (4, 20374992), (6, 13583328), (8, 10187496), (9, 9055552), (11, 7409088), (12, 6791664), (16, 5093748), (18, 4527776), (19, 4289472), (22, 3704544), (24, 3395832), (32, 2546874), (33, 2469696), (36, 2263888), (38, 2144736), (44, 1852272), (48, 1697916), (57, 1429824), (64, 1273437), (66, 1234848), (72, 1131944), (76, 1072368), (88, 926136), (96, 848958), (99, 823232), (114, 714912), (132, 617424), (144, 565972), (152, 536184), (171, 476608), (176, 463068), (192, 424479), (198, 411616), (209, 389952), (228, 357456), (264, 308712), (288, 282986), (304, 268092), (342, 238304), (352, 231534), (396, 205808), (418, 194976), (456, 178728), (528, 154356), (576, 141493), (608, 134046), (627, 129984), (677, 120384), (684, 119152), (704, 115767), (792, 102904), (836, 97488), (912, 89364), (1056, 77178), (1216, 67023), (1254, 64992), (1354, 60192), (1368, 59576), (1584, 51452), (1672, 48744), (1824, 44682), (1881, 43328), (2031, 40128), (2112, 38589), (2508, 32496), (2708, 30096), (2736, 29788), (3168, 25726), (3344, 24372), (3648, 22341), (3762, 21664), (4062, 20064), (5016, 16248), (5416, 15048), (5472, 14894), (6093, 13376), (6336, 12863), (6688, 12186), (7447, 10944), (7524, 10832), (8124, 10032)]