128487890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{558643}}^1$

素因数の和:558673

約数の個数: 16

約数和(自身を含む): 241334208

約数和(自身を除く): 112846318

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 558643, 1117286, 2793215, 5586430, 12848789, 25697578, 64243945, 128487890]

約数ペア:

[(1, 128487890), (2, 64243945), (5, 25697578), (10, 12848789), (23, 5586430), (46, 2793215), (115, 1117286), (230, 558643)]