8115020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 17781120

約数和(自身を除く): 9666100

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 97, 178, 188, 194, 235, 356, 388, 445, 470, 485, 890, 940, 970, 1780, 1940, 4183, 4559, 8366, 8633, 9118, 16732, 17266, 18236, 20915, 22795, 34532, 41830, 43165, 45590, 83660, 86330, 91180, 172660, 405751, 811502, 1623004, 2028755, 4057510, 8115020]

約数ペア:

[(1, 8115020), (2, 4057510), (4, 2028755), (5, 1623004), (10, 811502), (20, 405751), (47, 172660), (89, 91180), (94, 86330), (97, 83660), (178, 45590), (188, 43165), (194, 41830), (235, 34532), (356, 22795), (388, 20915), (445, 18236), (470, 17266), (485, 16732), (890, 9118), (940, 8633), (970, 8366), (1780, 4559), (1940, 4183)]