87771440

素因数分解:

$2^4\times 5^1\times {\mathrm{1097143}}^1$

素因数の和:1097156

約数の個数: 20

約数和(自身を含む): 204068784

約数和(自身を除く): 116297344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1097143, 2194286, 4388572, 5485715, 8777144, 10971430, 17554288, 21942860, 43885720, 87771440]

約数ペア:

[(1, 87771440), (2, 43885720), (4, 21942860), (5, 17554288), (8, 10971430), (10, 8777144), (16, 5485715), (20, 4388572), (40, 2194286), (80, 1097143)]