128479728

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1999}}^1$

素因数の和:2126

約数の個数: 80

約数和(自身を含む): 361088000

約数和(自身を除く): 232608272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 103, 104, 156, 206, 208, 309, 312, 412, 618, 624, 824, 1236, 1339, 1648, 1999, 2472, 2678, 3998, 4017, 4944, 5356, 5997, 7996, 8034, 10712, 11994, 15992, 16068, 21424, 23988, 25987, 31984, 32136, 47976, 51974, 64272, 77961, 95952, 103948, 155922, 205897, 207896, 311844, 411794, 415792, 617691, 623688, 823588, 1235382, 1247376, 1647176, 2470764, 2676661, 3294352, 4941528, 5353322, 8029983, 9883056, 10706644, 16059966, 21413288, 32119932, 42826576, 64239864, 128479728]

約数ペア:

[(1, 128479728), (2, 64239864), (3, 42826576), (4, 32119932), (6, 21413288), (8, 16059966), (12, 10706644), (13, 9883056), (16, 8029983), (24, 5353322), (26, 4941528), (39, 3294352), (48, 2676661), (52, 2470764), (78, 1647176), (103, 1247376), (104, 1235382), (156, 823588), (206, 623688), (208, 617691), (309, 415792), (312, 411794), (412, 311844), (618, 207896), (624, 205897), (824, 155922), (1236, 103948), (1339, 95952), (1648, 77961), (1999, 64272), (2472, 51974), (2678, 47976), (3998, 32136), (4017, 31984), (4944, 25987), (5356, 23988), (5997, 21424), (7996, 16068), (8034, 15992), (10712, 11994)]