64886290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{132421}}^1$

素因数の和:132442

約数の個数: 24

約数和(自身を含む): 135864972

約数和(自身を除く): 70978682

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 132421, 264842, 662105, 926947, 1324210, 1853894, 4634735, 6488629, 9269470, 12977258, 32443145, 64886290]

約数ペア:

[(1, 64886290), (2, 32443145), (5, 12977258), (7, 9269470), (10, 6488629), (14, 4634735), (35, 1853894), (49, 1324210), (70, 926947), (98, 662105), (245, 264842), (490, 132421)]