128206568

素因数分解:

$2^3\times 7^1\times {\mathrm{167}}^1\times {\mathrm{13709}}^1$

素因数の和:13889

約数の個数: 32

約数和(自身を含む): 276393600

約数和(自身を除く): 148187032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 167, 334, 668, 1169, 1336, 2338, 4676, 9352, 13709, 27418, 54836, 95963, 109672, 191926, 383852, 767704, 2289403, 4578806, 9157612, 16025821, 18315224, 32051642, 64103284, 128206568]

約数ペア:

[(1, 128206568), (2, 64103284), (4, 32051642), (7, 18315224), (8, 16025821), (14, 9157612), (28, 4578806), (56, 2289403), (167, 767704), (334, 383852), (668, 191926), (1169, 109672), (1336, 95963), (2338, 54836), (4676, 27418), (9352, 13709)]