128419216

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{195761}}^1$

素因数の和:195810

約数の個数: 20

約数和(自身を含む): 254882124

約数和(自身を除く): 126462908

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 195761, 391522, 783044, 1566088, 3132176, 8026201, 16052402, 32104804, 64209608, 128419216]

約数ペア:

[(1, 128419216), (2, 64209608), (4, 32104804), (8, 16052402), (16, 8026201), (41, 3132176), (82, 1566088), (164, 783044), (328, 391522), (656, 195761)]