28154672

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 68453952

約数和(自身を除く): 40299280

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 61, 91, 104, 112, 122, 182, 208, 244, 317, 364, 427, 488, 634, 728, 793, 854, 976, 1268, 1456, 1586, 1708, 2219, 2536, 3172, 3416, 4121, 4438, 5072, 5551, 6344, 6832, 8242, 8876, 11102, 12688, 16484, 17752, 19337, 22204, 28847, 32968, 35504, 38674, 44408, 57694, 65936, 77348, 88816, 115388, 135359, 154696, 230776, 251381, 270718, 309392, 461552, 502762, 541436, 1005524, 1082872, 1759667, 2011048, 2165744, 3519334, 4022096, 7038668, 14077336, 28154672]

約数ペア:

[(1, 28154672), (2, 14077336), (4, 7038668), (7, 4022096), (8, 3519334), (13, 2165744), (14, 2011048), (16, 1759667), (26, 1082872), (28, 1005524), (52, 541436), (56, 502762), (61, 461552), (91, 309392), (104, 270718), (112, 251381), (122, 230776), (182, 154696), (208, 135359), (244, 115388), (317, 88816), (364, 77348), (427, 65936), (488, 57694), (634, 44408), (728, 38674), (793, 35504), (854, 32968), (976, 28847), (1268, 22204), (1456, 19337), (1586, 17752), (1708, 16484), (2219, 12688), (2536, 11102), (3172, 8876), (3416, 8242), (4121, 6832), (4438, 6344), (5072, 5551)]