68649872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{138407}}^1$

素因数の和:138446

約数の個数: 20

約数和(自身を含む): 137300736

約数和(自身を除く): 68650864

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 138407, 276814, 553628, 1107256, 2214512, 4290617, 8581234, 17162468, 34324936, 68649872]

約数ペア:

[(1, 68649872), (2, 34324936), (4, 17162468), (8, 8581234), (16, 4290617), (31, 2214512), (62, 1107256), (124, 553628), (248, 276814), (496, 138407)]