12872975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 17238480

約数和(自身を除く): 4365505

約数列:

[1, 5, 19, 25, 41, 95, 205, 475, 661, 779, 1025, 3305, 3895, 12559, 16525, 19475, 27101, 62795, 135505, 313975, 514919, 677525, 2574595, 12872975]

約数ペア:

[(1, 12872975), (5, 2574595), (19, 677525), (25, 514919), (41, 313975), (95, 135505), (205, 62795), (475, 27101), (661, 19475), (779, 16525), (1025, 12559), (3305, 3895)]