81437085

素因数分解:

$3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4513}}^1$

素因数の和:4925

約数の個数: 24

約数和(自身を含む): 141540984

約数和(自身を除く): 60103899

約数列:

[1, 3, 5, 9, 15, 45, 401, 1203, 2005, 3609, 4513, 6015, 13539, 18045, 22565, 40617, 67695, 203085, 1809713, 5429139, 9048565, 16287417, 27145695, 81437085]

約数ペア:

[(1, 81437085), (3, 27145695), (5, 16287417), (9, 9048565), (15, 5429139), (45, 1809713), (401, 203085), (1203, 67695), (2005, 40617), (3609, 22565), (4513, 18045), (6015, 13539)]