123120304

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{405001}}^1$

素因数の和:405028

約数の個数: 20

約数和(自身を含む): 251101240

約数和(自身を除く): 127980936

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 405001, 810002, 1620004, 3240008, 6480016, 7695019, 15390038, 30780076, 61560152, 123120304]

約数ペア:

[(1, 123120304), (2, 61560152), (4, 30780076), (8, 15390038), (16, 7695019), (19, 6480016), (38, 3240008), (76, 1620004), (152, 810002), (304, 405001)]