207822500

素因数分解:

$2^2\times 5^4\times {\mathrm{97}}^1\times {\mathrm{857}}^1$

素因数の和:978

約数の個数: 60

約数和(自身を含む): 459687228

約数和(自身を除く): 251864728

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 194, 250, 388, 485, 500, 625, 857, 970, 1250, 1714, 1940, 2425, 2500, 3428, 4285, 4850, 8570, 9700, 12125, 17140, 21425, 24250, 42850, 48500, 60625, 83129, 85700, 107125, 121250, 166258, 214250, 242500, 332516, 415645, 428500, 535625, 831290, 1071250, 1662580, 2078225, 2142500, 4156450, 8312900, 10391125, 20782250, 41564500, 51955625, 103911250, 207822500]

約数ペア:

[(1, 207822500), (2, 103911250), (4, 51955625), (5, 41564500), (10, 20782250), (20, 10391125), (25, 8312900), (50, 4156450), (97, 2142500), (100, 2078225), (125, 1662580), (194, 1071250), (250, 831290), (388, 535625), (485, 428500), (500, 415645), (625, 332516), (857, 242500), (970, 214250), (1250, 166258), (1714, 121250), (1940, 107125), (2425, 85700), (2500, 83129), (3428, 60625), (4285, 48500), (4850, 42850), (8570, 24250), (9700, 21425), (12125, 17140)]