129020000

素因数分解:

$2^5\times 5^4\times {\mathrm{6451}}^1$

素因数の和:6481

約数の個数: 60

約数和(自身を含む): 317457756

約数和(自身を除く): 188437756

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, 5000, 6451, 10000, 12902, 20000, 25804, 32255, 51608, 64510, 103216, 129020, 161275, 206432, 258040, 322550, 516080, 645100, 806375, 1032160, 1290200, 1612750, 2580400, 3225500, 4031875, 5160800, 6451000, 8063750, 12902000, 16127500, 25804000, 32255000, 64510000, 129020000]

約数ペア:

[(1, 129020000), (2, 64510000), (4, 32255000), (5, 25804000), (8, 16127500), (10, 12902000), (16, 8063750), (20, 6451000), (25, 5160800), (32, 4031875), (40, 3225500), (50, 2580400), (80, 1612750), (100, 1290200), (125, 1032160), (160, 806375), (200, 645100), (250, 516080), (400, 322550), (500, 258040), (625, 206432), (800, 161275), (1000, 129020), (1250, 103216), (2000, 64510), (2500, 51608), (4000, 32255), (5000, 25804), (6451, 20000), (10000, 12902)]