28118528080

素因数分解:

$2^4\times 5^1\times {\mathrm{351481601}}^1$

素因数の和:351481614

約数の個数: 20

約数和(自身を含む): 65375577972

約数和(自身を除く): 37257049892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351481601, 702963202, 1405926404, 1757408005, 2811852808, 3514816010, 5623705616, 7029632020, 14059264040, 28118528080]

約数ペア:

[(1, 28118528080), (2, 14059264040), (4, 7029632020), (5, 5623705616), (8, 3514816010), (10, 2811852808), (16, 1757408005), (20, 1405926404), (40, 702963202), (80, 351481601)]