19964950

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{9739}}^1$

素因数の和:9792

約数の個数: 24

約数和(自身を含む): 38044440

約数和(自身を除く): 18079490

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 9739, 19478, 48695, 97390, 243475, 399299, 486950, 798598, 1996495, 3992990, 9982475, 19964950]

約数ペア:

[(1, 19964950), (2, 9982475), (5, 3992990), (10, 1996495), (25, 798598), (41, 486950), (50, 399299), (82, 243475), (205, 97390), (410, 48695), (1025, 19478), (2050, 9739)]