128537984

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{43661}}^1$

素因数の和:43698

約数の個数: 32

約数和(自身を含む): 267211440

約数和(自身を除く): 138673456

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 368, 736, 1472, 2944, 43661, 87322, 174644, 349288, 698576, 1004203, 1397152, 2008406, 2794304, 4016812, 5588608, 8033624, 16067248, 32134496, 64268992, 128537984]

約数ペア:

[(1, 128537984), (2, 64268992), (4, 32134496), (8, 16067248), (16, 8033624), (23, 5588608), (32, 4016812), (46, 2794304), (64, 2008406), (92, 1397152), (128, 1004203), (184, 698576), (368, 349288), (736, 174644), (1472, 87322), (2944, 43661)]