81482720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{691}}^1$

素因数の和:784

約数の個数: 96

約数和(自身を含む): 213446016

約数和(自身を除く): 131963296

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 67, 80, 88, 110, 134, 160, 176, 220, 268, 335, 352, 440, 536, 670, 691, 737, 880, 1072, 1340, 1382, 1474, 1760, 2144, 2680, 2764, 2948, 3455, 3685, 5360, 5528, 5896, 6910, 7370, 7601, 10720, 11056, 11792, 13820, 14740, 15202, 22112, 23584, 27640, 29480, 30404, 38005, 46297, 55280, 58960, 60808, 76010, 92594, 110560, 117920, 121616, 152020, 185188, 231485, 243232, 304040, 370376, 462970, 509267, 608080, 740752, 925940, 1018534, 1216160, 1481504, 1851880, 2037068, 2546335, 3703760, 4074136, 5092670, 7407520, 8148272, 10185340, 16296544, 20370680, 40741360, 81482720]

約数ペア:

[(1, 81482720), (2, 40741360), (4, 20370680), (5, 16296544), (8, 10185340), (10, 8148272), (11, 7407520), (16, 5092670), (20, 4074136), (22, 3703760), (32, 2546335), (40, 2037068), (44, 1851880), (55, 1481504), (67, 1216160), (80, 1018534), (88, 925940), (110, 740752), (134, 608080), (160, 509267), (176, 462970), (220, 370376), (268, 304040), (335, 243232), (352, 231485), (440, 185188), (536, 152020), (670, 121616), (691, 117920), (737, 110560), (880, 92594), (1072, 76010), (1340, 60808), (1382, 58960), (1474, 55280), (1760, 46297), (2144, 38005), (2680, 30404), (2764, 29480), (2948, 27640), (3455, 23584), (3685, 22112), (5360, 15202), (5528, 14740), (5896, 13820), (6910, 11792), (7370, 11056), (7601, 10720)]