1999715

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:250

約数の個数: 16

約数和(自身を含む): 2509056

約数和(自身を除く): 509341

約数列:

[1, 5, 43, 71, 131, 215, 355, 655, 3053, 5633, 9301, 15265, 28165, 46505, 399943, 1999715]

約数ペア:

[(1, 1999715), (5, 399943), (43, 46505), (71, 28165), (131, 15265), (215, 9301), (355, 5633), (655, 3053)]