68858800

素因数分解:

$2^4\times 5^2\times {\mathrm{172147}}^1$

素因数の和:172165

約数の個数: 30

約数和(自身を含む): 165434228

約数和(自身を除く): 96575428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 172147, 344294, 688588, 860735, 1377176, 1721470, 2754352, 3442940, 4303675, 6885880, 8607350, 13771760, 17214700, 34429400, 68858800]

約数ペア:

[(1, 68858800), (2, 34429400), (4, 17214700), (5, 13771760), (8, 8607350), (10, 6885880), (16, 4303675), (20, 3442940), (25, 2754352), (40, 1721470), (50, 1377176), (80, 860735), (100, 688588), (200, 344294), (400, 172147)]