81021728

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{8761}}^1$

素因数の和:8805

約数の個数: 36

約数和(自身を含む): 169465842

約数和(自身を除く): 88444114

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 289, 544, 578, 1156, 2312, 4624, 8761, 9248, 17522, 35044, 70088, 140176, 148937, 280352, 297874, 595748, 1191496, 2382992, 2531929, 4765984, 5063858, 10127716, 20255432, 40510864, 81021728]

約数ペア:

[(1, 81021728), (2, 40510864), (4, 20255432), (8, 10127716), (16, 5063858), (17, 4765984), (32, 2531929), (34, 2382992), (68, 1191496), (136, 595748), (272, 297874), (289, 280352), (544, 148937), (578, 140176), (1156, 70088), (2312, 35044), (4624, 17522), (8761, 9248)]