86980000

素因数分解:

$2^5\times 5^4\times {\mathrm{4349}}^1$

素因数の和:4379

約数の個数: 60

約数和(自身を含む): 214033050

約数和(自身を除く): 127053050

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 4000, 4349, 5000, 8698, 10000, 17396, 20000, 21745, 34792, 43490, 69584, 86980, 108725, 139168, 173960, 217450, 347920, 434900, 543625, 695840, 869800, 1087250, 1739600, 2174500, 2718125, 3479200, 4349000, 5436250, 8698000, 10872500, 17396000, 21745000, 43490000, 86980000]

約数ペア:

[(1, 86980000), (2, 43490000), (4, 21745000), (5, 17396000), (8, 10872500), (10, 8698000), (16, 5436250), (20, 4349000), (25, 3479200), (32, 2718125), (40, 2174500), (50, 1739600), (80, 1087250), (100, 869800), (125, 695840), (160, 543625), (200, 434900), (250, 347920), (400, 217450), (500, 173960), (625, 139168), (800, 108725), (1000, 86980), (1250, 69584), (2000, 43490), (2500, 34792), (4000, 21745), (4349, 20000), (5000, 17396), (8698, 10000)]