31721328

素因数分解:

$2^4\times 3^3\times {\mathrm{97}}^1\times {\mathrm{757}}^1$

素因数の和:871

約数の個数: 80

約数和(自身を含む): 92112160

約数和(自身を除く): 60390832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 97, 108, 144, 194, 216, 291, 388, 432, 582, 757, 776, 873, 1164, 1514, 1552, 1746, 2271, 2328, 2619, 3028, 3492, 4542, 4656, 5238, 6056, 6813, 6984, 9084, 10476, 12112, 13626, 13968, 18168, 20439, 20952, 27252, 36336, 40878, 41904, 54504, 73429, 81756, 109008, 146858, 163512, 220287, 293716, 327024, 440574, 587432, 660861, 881148, 1174864, 1321722, 1762296, 1982583, 2643444, 3524592, 3965166, 5286888, 7930332, 10573776, 15860664, 31721328]

約数ペア:

[(1, 31721328), (2, 15860664), (3, 10573776), (4, 7930332), (6, 5286888), (8, 3965166), (9, 3524592), (12, 2643444), (16, 1982583), (18, 1762296), (24, 1321722), (27, 1174864), (36, 881148), (48, 660861), (54, 587432), (72, 440574), (97, 327024), (108, 293716), (144, 220287), (194, 163512), (216, 146858), (291, 109008), (388, 81756), (432, 73429), (582, 54504), (757, 41904), (776, 40878), (873, 36336), (1164, 27252), (1514, 20952), (1552, 20439), (1746, 18168), (2271, 13968), (2328, 13626), (2619, 12112), (3028, 10476), (3492, 9084), (4542, 6984), (4656, 6813), (5238, 6056)]