20812440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15767}}^1$

素因数の和:15792

約数の個数: 64

約数和(自身を含む): 68117760

約数和(自身を除く): 47305320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15767, 31534, 47301, 63068, 78835, 94602, 126136, 157670, 173437, 189204, 236505, 315340, 346874, 378408, 473010, 520311, 630680, 693748, 867185, 946020, 1040622, 1387496, 1734370, 1892040, 2081244, 2601555, 3468740, 4162488, 5203110, 6937480, 10406220, 20812440]

約数ペア:

[(1, 20812440), (2, 10406220), (3, 6937480), (4, 5203110), (5, 4162488), (6, 3468740), (8, 2601555), (10, 2081244), (11, 1892040), (12, 1734370), (15, 1387496), (20, 1040622), (22, 946020), (24, 867185), (30, 693748), (33, 630680), (40, 520311), (44, 473010), (55, 378408), (60, 346874), (66, 315340), (88, 236505), (110, 189204), (120, 173437), (132, 157670), (165, 126136), (220, 94602), (264, 78835), (330, 63068), (440, 47301), (660, 31534), (1320, 15767)]