51020000

素因数分解:

$2^5\times 5^4\times {\mathrm{2551}}^1$

素因数の和:2581

約数の個数: 60

約数和(自身を含む): 125566056

約数和(自身を除く): 74546056

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, 2551, 4000, 5000, 5102, 10000, 10204, 12755, 20000, 20408, 25510, 40816, 51020, 63775, 81632, 102040, 127550, 204080, 255100, 318875, 408160, 510200, 637750, 1020400, 1275500, 1594375, 2040800, 2551000, 3188750, 5102000, 6377500, 10204000, 12755000, 25510000, 51020000]

約数ペア:

[(1, 51020000), (2, 25510000), (4, 12755000), (5, 10204000), (8, 6377500), (10, 5102000), (16, 3188750), (20, 2551000), (25, 2040800), (32, 1594375), (40, 1275500), (50, 1020400), (80, 637750), (100, 510200), (125, 408160), (160, 318875), (200, 255100), (250, 204080), (400, 127550), (500, 102040), (625, 81632), (800, 63775), (1000, 51020), (1250, 40816), (2000, 25510), (2500, 20408), (2551, 20000), (4000, 12755), (5000, 10204), (5102, 10000)]