261561386

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{38431}}^1$

素因数の和:38557

約数の個数: 16

約数和(自身を含む): 406764288

約数和(自身を除く): 145202902

約数列:

[1, 2, 41, 82, 83, 166, 3403, 6806, 38431, 76862, 1575671, 3151342, 3189773, 6379546, 130780693, 261561386]

約数ペア:

[(1, 261561386), (2, 130780693), (41, 6379546), (82, 3189773), (83, 3151342), (166, 1575671), (3403, 76862), (6806, 38431)]