20090500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1747}}^1$

素因数の和:1789

約数の個数: 48

約数和(自身を含む): 45811584

約数和(自身を除く): 25721084

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 460, 500, 575, 1150, 1747, 2300, 2875, 3494, 5750, 6988, 8735, 11500, 17470, 34940, 40181, 43675, 80362, 87350, 160724, 174700, 200905, 218375, 401810, 436750, 803620, 873500, 1004525, 2009050, 4018100, 5022625, 10045250, 20090500]

約数ペア:

[(1, 20090500), (2, 10045250), (4, 5022625), (5, 4018100), (10, 2009050), (20, 1004525), (23, 873500), (25, 803620), (46, 436750), (50, 401810), (92, 218375), (100, 200905), (115, 174700), (125, 160724), (230, 87350), (250, 80362), (460, 43675), (500, 40181), (575, 34940), (1150, 17470), (1747, 11500), (2300, 8735), (2875, 6988), (3494, 5750)]