1661365888

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:215

約数の個数: 256

約数和(自身を含む): 4342947840

約数和(自身を除く): 2681581952

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 43, 52, 56, 62, 64, 86, 91, 104, 107, 112, 124, 128, 172, 182, 208, 214, 217, 224, 248, 301, 344, 364, 403, 416, 428, 434, 448, 496, 559, 602, 688, 728, 749, 806, 832, 856, 868, 896, 992, 1118, 1204, 1333, 1376, 1391, 1456, 1498, 1612, 1664, 1712, 1736, 1984, 2236, 2408, 2666, 2752, 2782, 2821, 2912, 2996, 3224, 3317, 3424, 3472, 3913, 3968, 4472, 4601, 4816, 5332, 5504, 5564, 5642, 5824, 5992, 6448, 6634, 6848, 6944, 7826, 8944, 9202, 9331, 9632, 9737, 10664, 11128, 11284, 11648, 11984, 12896, 13268, 13696, 13888, 15652, 17329, 17888, 18404, 18662, 19264, 19474, 21328, 22256, 22568, 23219, 23968, 25792, 26536, 27776, 31304, 32207, 34658, 35776, 36808, 37324, 38528, 38948, 42656, 43121, 44512, 45136, 46438, 47936, 51584, 53072, 59813, 62608, 64414, 69316, 71552, 73616, 74648, 77896, 85312, 86242, 89024, 90272, 92876, 95872, 106144, 119626, 121303, 125216, 128828, 138632, 142631, 147232, 149296, 155792, 170624, 172484, 178048, 180544, 185752, 212288, 239252, 242606, 250432, 257656, 277264, 285262, 294464, 298592, 301847, 311584, 344968, 361088, 371504, 418691, 424576, 478504, 485212, 500864, 515312, 554528, 570524, 588928, 597184, 603694, 623168, 689936, 743008, 837382, 957008, 970424, 998417, 1030624, 1109056, 1141048, 1194368, 1207388, 1246336, 1379872, 1486016, 1674764, 1854203, 1914016, 1940848, 1996834, 2061248, 2218112, 2282096, 2414776, 2759744, 2972032, 3349528, 3708406, 3828032, 3881696, 3993668, 4122496, 4564192, 4829552, 5519488, 6699056, 7416812, 7656064, 7763392, 7987336, 9128384, 9659104, 12979421, 13398112, 14833624, 15526784, 15974672, 18256768, 19318208, 25958842, 26796224, 29667248, 31949344, 38636416, 51917684, 53592448, 59334496, 63898688, 103835368, 118668992, 127797376, 207670736, 237337984, 415341472, 830682944, 1661365888]

約数ペア:

[(1, 1661365888), (2, 830682944), (4, 415341472), (7, 237337984), (8, 207670736), (13, 127797376), (14, 118668992), (16, 103835368), (26, 63898688), (28, 59334496), (31, 53592448), (32, 51917684), (43, 38636416), (52, 31949344), (56, 29667248), (62, 26796224), (64, 25958842), (86, 19318208), (91, 18256768), (104, 15974672), (107, 15526784), (112, 14833624), (124, 13398112), (128, 12979421), (172, 9659104), (182, 9128384), (208, 7987336), (214, 7763392), (217, 7656064), (224, 7416812), (248, 6699056), (301, 5519488), (344, 4829552), (364, 4564192), (403, 4122496), (416, 3993668), (428, 3881696), (434, 3828032), (448, 3708406), (496, 3349528), (559, 2972032), (602, 2759744), (688, 2414776), (728, 2282096), (749, 2218112), (806, 2061248), (832, 1996834), (856, 1940848), (868, 1914016), (896, 1854203), (992, 1674764), (1118, 1486016), (1204, 1379872), (1333, 1246336), (1376, 1207388), (1391, 1194368), (1456, 1141048), (1498, 1109056), (1612, 1030624), (1664, 998417), (1712, 970424), (1736, 957008), (1984, 837382), (2236, 743008), (2408, 689936), (2666, 623168), (2752, 603694), (2782, 597184), (2821, 588928), (2912, 570524), (2996, 554528), (3224, 515312), (3317, 500864), (3424, 485212), (3472, 478504), (3913, 424576), (3968, 418691), (4472, 371504), (4601, 361088), (4816, 344968), (5332, 311584), (5504, 301847), (5564, 298592), (5642, 294464), (5824, 285262), (5992, 277264), (6448, 257656), (6634, 250432), (6848, 242606), (6944, 239252), (7826, 212288), (8944, 185752), (9202, 180544), (9331, 178048), (9632, 172484), (9737, 170624), (10664, 155792), (11128, 149296), (11284, 147232), (11648, 142631), (11984, 138632), (12896, 128828), (13268, 125216), (13696, 121303), (13888, 119626), (15652, 106144), (17329, 95872), (17888, 92876), (18404, 90272), (18662, 89024), (19264, 86242), (19474, 85312), (21328, 77896), (22256, 74648), (22568, 73616), (23219, 71552), (23968, 69316), (25792, 64414), (26536, 62608), (27776, 59813), (31304, 53072), (32207, 51584), (34658, 47936), (35776, 46438), (36808, 45136), (37324, 44512), (38528, 43121), (38948, 42656)]