213304820

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{42491}}^1$

素因数の和:42751

約数の個数: 24

約数和(自身を含む): 449735328

約数和(自身を除く): 236430508

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 42491, 84982, 169964, 212455, 424910, 849820, 10665241, 21330482, 42660964, 53326205, 106652410, 213304820]

約数ペア:

[(1, 213304820), (2, 106652410), (4, 53326205), (5, 42660964), (10, 21330482), (20, 10665241), (251, 849820), (502, 424910), (1004, 212455), (1255, 169964), (2510, 84982), (5020, 42491)]