66689744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{378919}}^1$

素因数の和:378938

約数の個数: 20

約数和(自身を含む): 140958240

約数和(自身を除く): 74268496

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 378919, 757838, 1515676, 3031352, 4168109, 6062704, 8336218, 16672436, 33344872, 66689744]

約数ペア:

[(1, 66689744), (2, 33344872), (4, 16672436), (8, 8336218), (11, 6062704), (16, 4168109), (22, 3031352), (44, 1515676), (88, 757838), (176, 378919)]