31418120

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3947}}^1$

素因数の和:4157

約数の個数: 32

約数和(自身を含む): 71064000

約数和(自身を除く): 39645880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3947, 3980, 7894, 7960, 15788, 19735, 31576, 39470, 78940, 157880, 785453, 1570906, 3141812, 3927265, 6283624, 7854530, 15709060, 31418120]

約数ペア:

[(1, 31418120), (2, 15709060), (4, 7854530), (5, 6283624), (8, 3927265), (10, 3141812), (20, 1570906), (40, 785453), (199, 157880), (398, 78940), (796, 39470), (995, 31576), (1592, 19735), (1990, 15788), (3947, 7960), (3980, 7894)]