261394672

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{641}}^1$

素因数の和:998

約数の個数: 80

約数和(自身を含む): 634316544

約数和(自身を除く): 372921872

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 331, 616, 641, 662, 1232, 1282, 1324, 2317, 2564, 2648, 3641, 4487, 4634, 5128, 5296, 7051, 7282, 8974, 9268, 10256, 14102, 14564, 17948, 18536, 25487, 28204, 29128, 35896, 37072, 49357, 50974, 56408, 58256, 71792, 98714, 101948, 112816, 197428, 203896, 212171, 394856, 407792, 424342, 789712, 848684, 1485197, 1697368, 2333881, 2970394, 3394736, 4667762, 5940788, 9335524, 11881576, 16337167, 18671048, 23763152, 32674334, 37342096, 65348668, 130697336, 261394672]

約数ペア:

[(1, 261394672), (2, 130697336), (4, 65348668), (7, 37342096), (8, 32674334), (11, 23763152), (14, 18671048), (16, 16337167), (22, 11881576), (28, 9335524), (44, 5940788), (56, 4667762), (77, 3394736), (88, 2970394), (112, 2333881), (154, 1697368), (176, 1485197), (308, 848684), (331, 789712), (616, 424342), (641, 407792), (662, 394856), (1232, 212171), (1282, 203896), (1324, 197428), (2317, 112816), (2564, 101948), (2648, 98714), (3641, 71792), (4487, 58256), (4634, 56408), (5128, 50974), (5296, 49357), (7051, 37072), (7282, 35896), (8974, 29128), (9268, 28204), (10256, 25487), (14102, 18536), (14564, 17948)]