81388665

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5531}}^1$

素因数の和:5654

約数の個数: 32

約数和(自身を含む): 146044800

約数和(自身を除く): 64656135

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1635, 2943, 4905, 5531, 14715, 16593, 27655, 49779, 82965, 149337, 248895, 602879, 746685, 1808637, 3014395, 5425911, 9043185, 16277733, 27129555, 81388665]

約数ペア:

[(1, 81388665), (3, 27129555), (5, 16277733), (9, 9043185), (15, 5425911), (27, 3014395), (45, 1808637), (109, 746685), (135, 602879), (327, 248895), (545, 149337), (981, 82965), (1635, 49779), (2943, 27655), (4905, 16593), (5531, 14715)]