128215838

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{15991}}^1$

素因数の和:16223

約数の個数: 16

約数和(自身を含む): 203418240

約数和(自身を除く): 75202402

約数列:

[1, 2, 19, 38, 211, 422, 4009, 8018, 15991, 31982, 303829, 607658, 3374101, 6748202, 64107919, 128215838]

約数ペア:

[(1, 128215838), (2, 64107919), (19, 6748202), (38, 3374101), (211, 607658), (422, 303829), (4009, 31982), (8018, 15991)]