49510000

素因数分解:

$2^4\times 5^4\times {\mathrm{4951}}^1$

素因数の和:4979

約数の個数: 50

約数和(自身を含む): 119892872

約数和(自身を除く): 70382872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 4951, 5000, 9902, 10000, 19804, 24755, 39608, 49510, 79216, 99020, 123775, 198040, 247550, 396080, 495100, 618875, 990200, 1237750, 1980400, 2475500, 3094375, 4951000, 6188750, 9902000, 12377500, 24755000, 49510000]

約数ペア:

[(1, 49510000), (2, 24755000), (4, 12377500), (5, 9902000), (8, 6188750), (10, 4951000), (16, 3094375), (20, 2475500), (25, 1980400), (40, 1237750), (50, 990200), (80, 618875), (100, 495100), (125, 396080), (200, 247550), (250, 198040), (400, 123775), (500, 99020), (625, 79216), (1000, 49510), (1250, 39608), (2000, 24755), (2500, 19804), (4951, 10000), (5000, 9902)]