20171463920

素因数分解:

$2^4\times 5^1\times {\mathrm{883}}^1\times {\mathrm{285553}}^1$

素因数の和:286449

約数の個数: 40

約数和(自身を含む): 46951930896

約数和(自身を除く): 26780466976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 883, 1766, 3532, 4415, 7064, 8830, 14128, 17660, 35320, 70640, 285553, 571106, 1142212, 1427765, 2284424, 2855530, 4568848, 5711060, 11422120, 22844240, 252143299, 504286598, 1008573196, 1260716495, 2017146392, 2521432990, 4034292784, 5042865980, 10085731960, 20171463920]

約数ペア:

[(1, 20171463920), (2, 10085731960), (4, 5042865980), (5, 4034292784), (8, 2521432990), (10, 2017146392), (16, 1260716495), (20, 1008573196), (40, 504286598), (80, 252143299), (883, 22844240), (1766, 11422120), (3532, 5711060), (4415, 4568848), (7064, 2855530), (8830, 2284424), (14128, 1427765), (17660, 1142212), (35320, 571106), (70640, 285553)]