214990000

素因数分解:

$2^4\times 5^4\times {\mathrm{21499}}^1$

素因数の和:21527

約数の個数: 50

約数和(自身を含む): 520536500

約数和(自身を除く): 305546500

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, 5000, 10000, 21499, 42998, 85996, 107495, 171992, 214990, 343984, 429980, 537475, 859960, 1074950, 1719920, 2149900, 2687375, 4299800, 5374750, 8599600, 10749500, 13436875, 21499000, 26873750, 42998000, 53747500, 107495000, 214990000]

約数ペア:

[(1, 214990000), (2, 107495000), (4, 53747500), (5, 42998000), (8, 26873750), (10, 21499000), (16, 13436875), (20, 10749500), (25, 8599600), (40, 5374750), (50, 4299800), (80, 2687375), (100, 2149900), (125, 1719920), (200, 1074950), (250, 859960), (400, 537475), (500, 429980), (625, 343984), (1000, 214990), (1250, 171992), (2000, 107495), (2500, 85996), (5000, 42998), (10000, 21499)]