127680304

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{420001}}^1$

素因数の和:420028

約数の個数: 20

約数和(自身を含む): 260401240

約数和(自身を除く): 132720936

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 420001, 840002, 1680004, 3360008, 6720016, 7980019, 15960038, 31920076, 63840152, 127680304]

約数ペア:

[(1, 127680304), (2, 63840152), (4, 31920076), (8, 15960038), (16, 7980019), (19, 6720016), (38, 3360008), (76, 1680004), (152, 840002), (304, 420001)]