31680216

素因数分解:

$2^3\times 3^2\times {\mathrm{251}}^1\times {\mathrm{1753}}^1$

素因数の和:2016

約数の個数: 48

約数和(自身を含む): 86191560

約数和(自身を除く): 54511344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 251, 502, 753, 1004, 1506, 1753, 2008, 2259, 3012, 3506, 4518, 5259, 6024, 7012, 9036, 10518, 14024, 15777, 18072, 21036, 31554, 42072, 63108, 126216, 440003, 880006, 1320009, 1760012, 2640018, 3520024, 3960027, 5280036, 7920054, 10560072, 15840108, 31680216]

約数ペア:

[(1, 31680216), (2, 15840108), (3, 10560072), (4, 7920054), (6, 5280036), (8, 3960027), (9, 3520024), (12, 2640018), (18, 1760012), (24, 1320009), (36, 880006), (72, 440003), (251, 126216), (502, 63108), (753, 42072), (1004, 31554), (1506, 21036), (1753, 18072), (2008, 15777), (2259, 14024), (3012, 10518), (3506, 9036), (4518, 7012), (5259, 6024)]