209317072

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{688543}}^1$

素因数の和:688570

約数の個数: 20

約数和(自身を含む): 426897280

約数和(自身を除く): 217580208

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 688543, 1377086, 2754172, 5508344, 11016688, 13082317, 26164634, 52329268, 104658536, 209317072]

約数ペア:

[(1, 209317072), (2, 104658536), (4, 52329268), (8, 26164634), (16, 13082317), (19, 11016688), (38, 5508344), (76, 2754172), (152, 1377086), (304, 688543)]