27678980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{937}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 66815616

約数和(自身を除く): 39136636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 937, 1055, 1477, 1874, 2110, 2954, 3748, 4220, 4685, 5908, 6559, 7385, 9370, 13118, 14770, 18740, 26236, 29540, 32795, 65590, 131180, 197707, 395414, 790828, 988535, 1383949, 1977070, 2767898, 3954140, 5535796, 6919745, 13839490, 27678980]

約数ペア:

[(1, 27678980), (2, 13839490), (4, 6919745), (5, 5535796), (7, 3954140), (10, 2767898), (14, 1977070), (20, 1383949), (28, 988535), (35, 790828), (70, 395414), (140, 197707), (211, 131180), (422, 65590), (844, 32795), (937, 29540), (1055, 26236), (1477, 18740), (1874, 14770), (2110, 13118), (2954, 9370), (3748, 7385), (4220, 6559), (4685, 5908)]