3956500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 8897616

約数和(自身を除く): 4941116

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 193, 205, 250, 386, 410, 500, 772, 820, 965, 1025, 1930, 2050, 3860, 4100, 4825, 5125, 7913, 9650, 10250, 15826, 19300, 20500, 24125, 31652, 39565, 48250, 79130, 96500, 158260, 197825, 395650, 791300, 989125, 1978250, 3956500]

約数ペア:

[(1, 3956500), (2, 1978250), (4, 989125), (5, 791300), (10, 395650), (20, 197825), (25, 158260), (41, 96500), (50, 79130), (82, 48250), (100, 39565), (125, 31652), (164, 24125), (193, 20500), (205, 19300), (250, 15826), (386, 10250), (410, 9650), (500, 7913), (772, 5125), (820, 4825), (965, 4100), (1025, 3860), (1930, 2050)]