508765000

素因数分解:

$2^3\times 5^4\times {\mathrm{97}}^1\times {\mathrm{1049}}^1$

素因数の和:1172

約数の個数: 80

約数和(自身を含む): 1205473500

約数和(自身を除く): 696708500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 125, 194, 200, 250, 388, 485, 500, 625, 776, 970, 1000, 1049, 1250, 1940, 2098, 2425, 2500, 3880, 4196, 4850, 5000, 5245, 8392, 9700, 10490, 12125, 19400, 20980, 24250, 26225, 41960, 48500, 52450, 60625, 97000, 101753, 104900, 121250, 131125, 203506, 209800, 242500, 262250, 407012, 485000, 508765, 524500, 655625, 814024, 1017530, 1049000, 1311250, 2035060, 2543825, 2622500, 4070120, 5087650, 5245000, 10175300, 12719125, 20350600, 25438250, 50876500, 63595625, 101753000, 127191250, 254382500, 508765000]

約数ペア:

[(1, 508765000), (2, 254382500), (4, 127191250), (5, 101753000), (8, 63595625), (10, 50876500), (20, 25438250), (25, 20350600), (40, 12719125), (50, 10175300), (97, 5245000), (100, 5087650), (125, 4070120), (194, 2622500), (200, 2543825), (250, 2035060), (388, 1311250), (485, 1049000), (500, 1017530), (625, 814024), (776, 655625), (970, 524500), (1000, 508765), (1049, 485000), (1250, 407012), (1940, 262250), (2098, 242500), (2425, 209800), (2500, 203506), (3880, 131125), (4196, 121250), (4850, 104900), (5000, 101753), (5245, 97000), (8392, 60625), (9700, 52450), (10490, 48500), (12125, 41960), (19400, 26225), (20980, 24250)]