42128920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22409}}^1$

素因数の和:22467

約数の個数: 32

約数和(自身を含む): 96811200

約数和(自身を除く): 54682280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 22409, 44818, 89636, 112045, 179272, 224090, 448180, 896360, 1053223, 2106446, 4212892, 5266115, 8425784, 10532230, 21064460, 42128920]

約数ペア:

[(1, 42128920), (2, 21064460), (4, 10532230), (5, 8425784), (8, 5266115), (10, 4212892), (20, 2106446), (40, 1053223), (47, 896360), (94, 448180), (188, 224090), (235, 179272), (376, 112045), (470, 89636), (940, 44818), (1880, 22409)]