65344820

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{12713}}^1$

素因数の和:12979

約数の個数: 24

約数和(自身を含む): 137768904

約数和(自身を除く): 72424084

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 12713, 25426, 50852, 63565, 127130, 254260, 3267241, 6534482, 13068964, 16336205, 32672410, 65344820]

約数ペア:

[(1, 65344820), (2, 32672410), (4, 16336205), (5, 13068964), (10, 6534482), (20, 3267241), (257, 254260), (514, 127130), (1028, 63565), (1285, 50852), (2570, 25426), (5140, 12713)]