391558370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{28109}}^1$

素因数の和:28322

約数の個数: 32

約数和(自身を含む): 809568000

約数和(自身を除く): 418009630

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1990, 2786, 6965, 13930, 28109, 56218, 140545, 196763, 281090, 393526, 983815, 1967630, 5593691, 11187382, 27968455, 39155837, 55936910, 78311674, 195779185, 391558370]

約数ペア:

[(1, 391558370), (2, 195779185), (5, 78311674), (7, 55936910), (10, 39155837), (14, 27968455), (35, 11187382), (70, 5593691), (199, 1967630), (398, 983815), (995, 393526), (1393, 281090), (1990, 196763), (2786, 140545), (6965, 56218), (13930, 28109)]