90911320

素因数分解:

$2^3\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{1777}}^1$

素因数の和:3067

約数の個数: 32

約数和(自身を含む): 204825600

約数和(自身を除く): 113914280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1279, 1777, 2558, 3554, 5116, 6395, 7108, 8885, 10232, 12790, 14216, 17770, 25580, 35540, 51160, 71080, 2272783, 4545566, 9091132, 11363915, 18182264, 22727830, 45455660, 90911320]

約数ペア:

[(1, 90911320), (2, 45455660), (4, 22727830), (5, 18182264), (8, 11363915), (10, 9091132), (20, 4545566), (40, 2272783), (1279, 71080), (1777, 51160), (2558, 35540), (3554, 25580), (5116, 17770), (6395, 14216), (7108, 12790), (8885, 10232)]