81612266

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1\times {\mathrm{2179}}^1$

素因数の和:2549

約数の個数: 16

約数和(自身を含む): 124887840

約数和(自身を除く): 43275574

約数列:

[1, 2, 61, 122, 307, 614, 2179, 4358, 18727, 37454, 132919, 265838, 668953, 1337906, 40806133, 81612266]

約数ペア:

[(1, 81612266), (2, 40806133), (61, 1337906), (122, 668953), (307, 265838), (614, 132919), (2179, 37454), (4358, 18727)]