20137750

素因数分解:

$2^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{739}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 38095200

約数和(自身を除く): 17957450

約数列:

[1, 2, 5, 10, 25, 50, 109, 125, 218, 250, 545, 739, 1090, 1478, 2725, 3695, 5450, 7390, 13625, 18475, 27250, 36950, 80551, 92375, 161102, 184750, 402755, 805510, 2013775, 4027550, 10068875, 20137750]

約数ペア:

[(1, 20137750), (2, 10068875), (5, 4027550), (10, 2013775), (25, 805510), (50, 402755), (109, 184750), (125, 161102), (218, 92375), (250, 80551), (545, 36950), (739, 27250), (1090, 18475), (1478, 13625), (2725, 7390), (3695, 5450)]