1978250

素因数分解:

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

素因数の和:251

約数の個数: 32

約数和(自身を含む): 3813264

約数和(自身を除く): 1835014

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 193, 205, 250, 386, 410, 965, 1025, 1930, 2050, 4825, 5125, 7913, 9650, 10250, 15826, 24125, 39565, 48250, 79130, 197825, 395650, 989125, 1978250]

約数ペア:

[(1, 1978250), (2, 989125), (5, 395650), (10, 197825), (25, 79130), (41, 48250), (50, 39565), (82, 24125), (125, 15826), (193, 10250), (205, 9650), (250, 7913), (386, 5125), (410, 4825), (965, 2050), (1025, 1930)]