31821820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 69148800

約数和(自身を除く): 37326980

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 97, 188, 194, 235, 349, 388, 470, 485, 698, 940, 970, 1396, 1745, 1940, 3490, 4559, 6980, 9118, 16403, 18236, 22795, 32806, 33853, 45590, 65612, 67706, 82015, 91180, 135412, 164030, 169265, 328060, 338530, 677060, 1591091, 3182182, 6364364, 7955455, 15910910, 31821820]

約数ペア:

[(1, 31821820), (2, 15910910), (4, 7955455), (5, 6364364), (10, 3182182), (20, 1591091), (47, 677060), (94, 338530), (97, 328060), (188, 169265), (194, 164030), (235, 135412), (349, 91180), (388, 82015), (470, 67706), (485, 65612), (698, 45590), (940, 33853), (970, 32806), (1396, 22795), (1745, 18236), (1940, 16403), (3490, 9118), (4559, 6980)]