1287408290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{251939}}^1$

素因数の和:252026

約数の個数: 32

約数和(自身を含む): 2684672640

約数和(自身を除く): 1397264350

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 5110, 251939, 503878, 1259695, 1763573, 2519390, 3527146, 8817865, 17635730, 18391547, 36783094, 91957735, 128740829, 183915470, 257481658, 643704145, 1287408290]

約数ペア:

[(1, 1287408290), (2, 643704145), (5, 257481658), (7, 183915470), (10, 128740829), (14, 91957735), (35, 36783094), (70, 18391547), (73, 17635730), (146, 8817865), (365, 3527146), (511, 2519390), (730, 1763573), (1022, 1259695), (2555, 503878), (5110, 251939)]