389905118

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{140557}}^1$

素因数の和:140651

約数の個数: 16

約数和(自身を含む): 624077520

約数和(自身を除く): 234172402

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 140557, 281114, 2670583, 5341166, 10260661, 20521322, 194952559, 389905118]

約数ペア:

[(1, 389905118), (2, 194952559), (19, 20521322), (38, 10260661), (73, 5341166), (146, 2670583), (1387, 281114), (2774, 140557)]