50780000

素因数分解:

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

素因数の和:2569

約数の個数: 60

約数和(自身を含む): 124975620

約数和(自身を除く): 74195620

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, 2539, 4000, 5000, 5078, 10000, 10156, 12695, 20000, 20312, 25390, 40624, 50780, 63475, 81248, 101560, 126950, 203120, 253900, 317375, 406240, 507800, 634750, 1015600, 1269500, 1586875, 2031200, 2539000, 3173750, 5078000, 6347500, 10156000, 12695000, 25390000, 50780000]

約数ペア:

[(1, 50780000), (2, 25390000), (4, 12695000), (5, 10156000), (8, 6347500), (10, 5078000), (16, 3173750), (20, 2539000), (25, 2031200), (32, 1586875), (40, 1269500), (50, 1015600), (80, 634750), (100, 507800), (125, 406240), (160, 317375), (200, 253900), (250, 203120), (400, 126950), (500, 101560), (625, 81248), (800, 63475), (1000, 50780), (1250, 40624), (2000, 25390), (2500, 20312), (2539, 20000), (4000, 12695), (5000, 10156), (5078, 10000)]