1281183995

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{39659}}^1$

素因数の和:39755

約数の個数: 32

約数和(自身を含む): 1918909440

約数和(自身を除く): 637725445

約数列:

[1, 5, 7, 13, 35, 65, 71, 91, 355, 455, 497, 923, 2485, 4615, 6461, 32305, 39659, 198295, 277613, 515567, 1388065, 2577835, 2815789, 3608969, 14078945, 18044845, 19710523, 36605257, 98552615, 183026285, 256236799, 1281183995]

約数ペア:

[(1, 1281183995), (5, 256236799), (7, 183026285), (13, 98552615), (35, 36605257), (65, 19710523), (71, 18044845), (91, 14078945), (355, 3608969), (455, 2815789), (497, 2577835), (923, 1388065), (2485, 515567), (4615, 277613), (6461, 198295), (32305, 39659)]