27678910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1987}}^1$

素因数の和:2200

約数の個数: 32

約数和(自身を含む): 57254400

約数和(自身を除く): 29575490

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1987, 1990, 2786, 3974, 6965, 9935, 13909, 13930, 19870, 27818, 69545, 139090, 395413, 790826, 1977065, 2767891, 3954130, 5535782, 13839455, 27678910]

約数ペア:

[(1, 27678910), (2, 13839455), (5, 5535782), (7, 3954130), (10, 2767891), (14, 1977065), (35, 790826), (70, 395413), (199, 139090), (398, 69545), (995, 27818), (1393, 19870), (1987, 13930), (1990, 13909), (2786, 9935), (3974, 6965)]