20533720

素因数分解:

$2^3\times 5^1\times {\mathrm{599}}^1\times {\mathrm{857}}^1$

素因数の和:1467

約数の個数: 32

約数和(自身を含む): 46332000

約数和(自身を除く): 25798280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 599, 857, 1198, 1714, 2396, 2995, 3428, 4285, 4792, 5990, 6856, 8570, 11980, 17140, 23960, 34280, 513343, 1026686, 2053372, 2566715, 4106744, 5133430, 10266860, 20533720]

約数ペア:

[(1, 20533720), (2, 10266860), (4, 5133430), (5, 4106744), (8, 2566715), (10, 2053372), (20, 1026686), (40, 513343), (599, 34280), (857, 23960), (1198, 17140), (1714, 11980), (2396, 8570), (2995, 6856), (3428, 5990), (4285, 4792)]