128891155

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{28867}}^1$

素因数の和:28938

約数の個数: 16

約数和(自身を含む): 166279680

約数和(自身を除く): 37388525

約数列:

[1, 5, 19, 47, 95, 235, 893, 4465, 28867, 144335, 548473, 1356749, 2742365, 6783745, 25778231, 128891155]

約数ペア:

[(1, 128891155), (5, 25778231), (19, 6783745), (47, 2742365), (95, 1356749), (235, 548473), (893, 144335), (4465, 28867)]