19922800

素因数分解:

$2^4\times 5^2\times {\mathrm{49807}}^1$

素因数の和:49825

約数の個数: 30

約数和(自身を含む): 47865488

約数和(自身を除く): 27942688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49807, 99614, 199228, 249035, 398456, 498070, 796912, 996140, 1245175, 1992280, 2490350, 3984560, 4980700, 9961400, 19922800]

約数ペア:

[(1, 19922800), (2, 9961400), (4, 4980700), (5, 3984560), (8, 2490350), (10, 1992280), (16, 1245175), (20, 996140), (25, 796912), (40, 498070), (50, 398456), (80, 249035), (100, 199228), (200, 99614), (400, 49807)]