127980316

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{405001}}^1$

素因数の和:405084

約数の個数: 12

約数和(自身を含む): 226801120

約数和(自身を除く): 98820804

約数列:

[1, 2, 4, 79, 158, 316, 405001, 810002, 1620004, 31995079, 63990158, 127980316]

約数ペア:

[(1, 127980316), (2, 63990158), (4, 31995079), (79, 1620004), (158, 810002), (316, 405001)]