131812120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{15767}}^1$

素因数の和:15808

約数の個数: 64

約数和(自身を含む): 340588800

約数和(自身を除く): 208776680

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 4180, 8360, 15767, 31534, 63068, 78835, 126136, 157670, 173437, 299573, 315340, 346874, 599146, 630680, 693748, 867185, 1198292, 1387496, 1497865, 1734370, 2396584, 2995730, 3295303, 3468740, 5991460, 6590606, 6937480, 11982920, 13181212, 16476515, 26362424, 32953030, 65906060, 131812120]

約数ペア:

[(1, 131812120), (2, 65906060), (4, 32953030), (5, 26362424), (8, 16476515), (10, 13181212), (11, 11982920), (19, 6937480), (20, 6590606), (22, 5991460), (38, 3468740), (40, 3295303), (44, 2995730), (55, 2396584), (76, 1734370), (88, 1497865), (95, 1387496), (110, 1198292), (152, 867185), (190, 693748), (209, 630680), (220, 599146), (380, 346874), (418, 315340), (440, 299573), (760, 173437), (836, 157670), (1045, 126136), (1672, 78835), (2090, 63068), (4180, 31534), (8360, 15767)]