12538955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 18973440

約数和(自身を除く): 6434485

約数列:

[1, 5, 11, 13, 19, 55, 65, 71, 95, 143, 169, 209, 247, 355, 715, 781, 845, 923, 1045, 1235, 1349, 1859, 2717, 3211, 3905, 4615, 6745, 9295, 10153, 11999, 13585, 14839, 16055, 17537, 35321, 50765, 59995, 74195, 87685, 131989, 176605, 192907, 227981, 659945, 964535, 1139905, 2507791, 12538955]

約数ペア:

[(1, 12538955), (5, 2507791), (11, 1139905), (13, 964535), (19, 659945), (55, 227981), (65, 192907), (71, 176605), (95, 131989), (143, 87685), (169, 74195), (209, 59995), (247, 50765), (355, 35321), (715, 17537), (781, 16055), (845, 14839), (923, 13585), (1045, 11999), (1235, 10153), (1349, 9295), (1859, 6745), (2717, 4615), (3211, 3905)]