66978140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{90511}}^1$

素因数の和:90557

約数の個数: 24

約数和(自身を含む): 144457152

約数和(自身を除く): 77479012

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 90511, 181022, 362044, 452555, 905110, 1810220, 3348907, 6697814, 13395628, 16744535, 33489070, 66978140]

約数ペア:

[(1, 66978140), (2, 33489070), (4, 16744535), (5, 13395628), (10, 6697814), (20, 3348907), (37, 1810220), (74, 905110), (148, 452555), (185, 362044), (370, 181022), (740, 90511)]