198528080

素因数分解:

$2^4\times 5^1\times {\mathrm{2481601}}^1$

素因数の和:2481614

約数の個数: 20

約数和(自身を含む): 461577972

約数和(自身を除く): 263049892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2481601, 4963202, 9926404, 12408005, 19852808, 24816010, 39705616, 49632020, 99264040, 198528080]

約数ペア:

[(1, 198528080), (2, 99264040), (4, 49632020), (5, 39705616), (8, 24816010), (10, 19852808), (16, 12408005), (20, 9926404), (40, 4963202), (80, 2481601)]