81329390

素因数分解:

$2^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{11471}}^1$

素因数の和:12187

約数の個数: 16

約数和(自身を含む): 146612160

約数和(自身を除く): 65282770

約数列:

[1, 2, 5, 10, 709, 1418, 3545, 7090, 11471, 22942, 57355, 114710, 8132939, 16265878, 40664695, 81329390]

約数ペア:

[(1, 81329390), (2, 40664695), (5, 16265878), (10, 8132939), (709, 114710), (1418, 57355), (3545, 22942), (7090, 11471)]