20512483984

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16228231}}^1$

素因数の和:16228318

約数の個数: 20

約数和(自身を含む): 40246015360

約数和(自身を除く): 19733531376

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16228231, 32456462, 64912924, 129825848, 259651696, 1282030249, 2564060498, 5128120996, 10256241992, 20512483984]

約数ペア:

[(1, 20512483984), (2, 10256241992), (4, 5128120996), (8, 2564060498), (16, 1282030249), (79, 259651696), (158, 129825848), (316, 64912924), (632, 32456462), (1264, 16228231)]