16748020

素因数分解:

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

素因数の和:292

約数の個数: 36

約数和(自身を含む): 35936460

約数和(自身を除く): 19188440

約数列:

[1, 2, 4, 5, 10, 20, 89, 97, 178, 194, 356, 388, 445, 485, 890, 970, 1780, 1940, 8633, 9409, 17266, 18818, 34532, 37636, 43165, 47045, 86330, 94090, 172660, 188180, 837401, 1674802, 3349604, 4187005, 8374010, 16748020]

約数ペア:

[(1, 16748020), (2, 8374010), (4, 4187005), (5, 3349604), (10, 1674802), (20, 837401), (89, 188180), (97, 172660), (178, 94090), (194, 86330), (356, 47045), (388, 43165), (445, 37636), (485, 34532), (890, 18818), (970, 17266), (1780, 9409), (1940, 8633)]