12695000

素因数分解:

$2^3\times 5^4\times {\mathrm{2539}}^1$

素因数の和:2565

約数の個数: 40

約数和(自身を含む): 29756100

約数和(自身を除く): 17061100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 2539, 5000, 5078, 10156, 12695, 20312, 25390, 50780, 63475, 101560, 126950, 253900, 317375, 507800, 634750, 1269500, 1586875, 2539000, 3173750, 6347500, 12695000]

約数ペア:

[(1, 12695000), (2, 6347500), (4, 3173750), (5, 2539000), (8, 1586875), (10, 1269500), (20, 634750), (25, 507800), (40, 317375), (50, 253900), (100, 126950), (125, 101560), (200, 63475), (250, 50780), (500, 25390), (625, 20312), (1000, 12695), (1250, 10156), (2500, 5078), (2539, 5000)]