280862000

素因数分解:

$2^4\times 5^3\times {\mathrm{317}}^1\times {\mathrm{443}}^1$

素因数の和:783

約数の個数: 80

約数和(自身を含む): 682804512

約数和(自身を除く): 401942512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 317, 400, 443, 500, 634, 886, 1000, 1268, 1585, 1772, 2000, 2215, 2536, 3170, 3544, 4430, 5072, 6340, 7088, 7925, 8860, 11075, 12680, 15850, 17720, 22150, 25360, 31700, 35440, 39625, 44300, 55375, 63400, 79250, 88600, 110750, 126800, 140431, 158500, 177200, 221500, 280862, 317000, 443000, 561724, 634000, 702155, 886000, 1123448, 1404310, 2246896, 2808620, 3510775, 5617240, 7021550, 11234480, 14043100, 17553875, 28086200, 35107750, 56172400, 70215500, 140431000, 280862000]

約数ペア:

[(1, 280862000), (2, 140431000), (4, 70215500), (5, 56172400), (8, 35107750), (10, 28086200), (16, 17553875), (20, 14043100), (25, 11234480), (40, 7021550), (50, 5617240), (80, 3510775), (100, 2808620), (125, 2246896), (200, 1404310), (250, 1123448), (317, 886000), (400, 702155), (443, 634000), (500, 561724), (634, 443000), (886, 317000), (1000, 280862), (1268, 221500), (1585, 177200), (1772, 158500), (2000, 140431), (2215, 126800), (2536, 110750), (3170, 88600), (3544, 79250), (4430, 63400), (5072, 55375), (6340, 44300), (7088, 39625), (7925, 35440), (8860, 31700), (11075, 25360), (12680, 22150), (15850, 17720)]