21295000

素因数分解:

$2^3\times 5^4\times {\mathrm{4259}}^1$

素因数の和:4285

約数の個数: 40

約数和(自身を含む): 49905900

約数和(自身を除く): 28610900

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 4259, 5000, 8518, 17036, 21295, 34072, 42590, 85180, 106475, 170360, 212950, 425900, 532375, 851800, 1064750, 2129500, 2661875, 4259000, 5323750, 10647500, 21295000]

約数ペア:

[(1, 21295000), (2, 10647500), (4, 5323750), (5, 4259000), (8, 2661875), (10, 2129500), (20, 1064750), (25, 851800), (40, 532375), (50, 425900), (100, 212950), (125, 170360), (200, 106475), (250, 85180), (500, 42590), (625, 34072), (1000, 21295), (1250, 17036), (2500, 8518), (4259, 5000)]