7908260

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1987}}^1$

素因数の和:2195

約数の個数: 24

約数和(自身を含む): 16699200

約数和(自身を除く): 8790940

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1987, 1990, 3974, 3980, 7948, 9935, 19870, 39740, 395413, 790826, 1581652, 1977065, 3954130, 7908260]

約数ペア:

[(1, 7908260), (2, 3954130), (4, 1977065), (5, 1581652), (10, 790826), (20, 395413), (199, 39740), (398, 19870), (796, 9935), (995, 7948), (1987, 3980), (1990, 3974)]