31200255

素因数分解:

$3^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{967}}^1$

素因数の和:1220

約数の個数: 32

約数和(自身を含む): 55756800

約数和(自身を除く): 24556545

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 239, 717, 967, 1195, 2151, 2901, 3585, 4835, 6453, 8703, 10755, 14505, 26109, 32265, 43515, 130545, 231113, 693339, 1155565, 2080017, 3466695, 6240051, 10400085, 31200255]

約数ペア:

[(1, 31200255), (3, 10400085), (5, 6240051), (9, 3466695), (15, 2080017), (27, 1155565), (45, 693339), (135, 231113), (239, 130545), (717, 43515), (967, 32265), (1195, 26109), (2151, 14505), (2901, 10755), (3585, 8703), (4835, 6453)]