81293085

素因数分解:

$3^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{911}}^1$

素因数の和:1586

約数の個数: 32

約数和(自身を含む): 144898560

約数和(自身を除く): 63605475

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 661, 911, 1983, 2733, 3305, 4555, 5949, 8199, 9915, 13665, 17847, 24597, 29745, 40995, 89235, 122985, 602171, 1806513, 3010855, 5419539, 9032565, 16258617, 27097695, 81293085]

約数ペア:

[(1, 81293085), (3, 27097695), (5, 16258617), (9, 9032565), (15, 5419539), (27, 3010855), (45, 1806513), (135, 602171), (661, 122985), (911, 89235), (1983, 40995), (2733, 29745), (3305, 24597), (4555, 17847), (5949, 13665), (8199, 9915)]