20635000

素因数分解:

$2^3\times 5^4\times {\mathrm{4127}}^1$

素因数の和:4153

約数の個数: 40

約数和(自身を含む): 48359520

約数和(自身を除く): 27724520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 4127, 5000, 8254, 16508, 20635, 33016, 41270, 82540, 103175, 165080, 206350, 412700, 515875, 825400, 1031750, 2063500, 2579375, 4127000, 5158750, 10317500, 20635000]

約数ペア:

[(1, 20635000), (2, 10317500), (4, 5158750), (5, 4127000), (8, 2579375), (10, 2063500), (20, 1031750), (25, 825400), (40, 515875), (50, 412700), (100, 206350), (125, 165080), (200, 103175), (250, 82540), (500, 41270), (625, 33016), (1000, 20635), (1250, 16508), (2500, 8254), (4127, 5000)]