78972016

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{35509}}^1$

素因数の和:35656

約数の個数: 20

約数和(自身を含む): 154113400

約数和(自身を除く): 75141384

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 35509, 71018, 142036, 284072, 568144, 4935751, 9871502, 19743004, 39486008, 78972016]

約数ペア:

[(1, 78972016), (2, 39486008), (4, 19743004), (8, 9871502), (16, 4935751), (139, 568144), (278, 284072), (556, 142036), (1112, 71018), (2224, 35509)]