639888908

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{883}}^1\times {\mathrm{10657}}^1$

素因数の和:11561

約数の個数: 24

約数和(自身を含む): 1187130672

約数和(自身を除く): 547241764

約数列:

[1, 2, 4, 17, 34, 68, 883, 1766, 3532, 10657, 15011, 21314, 30022, 42628, 60044, 181169, 362338, 724676, 9410131, 18820262, 37640524, 159972227, 319944454, 639888908]

約数ペア:

[(1, 639888908), (2, 319944454), (4, 159972227), (17, 37640524), (34, 18820262), (68, 9410131), (883, 724676), (1766, 362338), (3532, 181169), (10657, 60044), (15011, 42628), (21314, 30022)]