200979400

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{5101}}^1$

素因数の和:5314

約数の個数: 48

約数和(自身を含む): 469741140

約数和(自身を除く): 268761740

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 394, 788, 985, 1576, 1970, 3940, 4925, 5101, 7880, 9850, 10202, 19700, 20404, 25505, 39400, 40808, 51010, 102020, 127525, 204040, 255050, 510100, 1004897, 1020200, 2009794, 4019588, 5024485, 8039176, 10048970, 20097940, 25122425, 40195880, 50244850, 100489700, 200979400]

約数ペア:

[(1, 200979400), (2, 100489700), (4, 50244850), (5, 40195880), (8, 25122425), (10, 20097940), (20, 10048970), (25, 8039176), (40, 5024485), (50, 4019588), (100, 2009794), (197, 1020200), (200, 1004897), (394, 510100), (788, 255050), (985, 204040), (1576, 127525), (1970, 102020), (3940, 51010), (4925, 40808), (5101, 39400), (7880, 25505), (9850, 20404), (10202, 19700)]