88131320

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{5387}}^1$

素因数の和:5807

約数の個数: 32

約数和(自身を含む): 198817200

約数和(自身を除く): 110685880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 5387, 8180, 10774, 16360, 21548, 26935, 43096, 53870, 107740, 215480, 2203283, 4406566, 8813132, 11016415, 17626264, 22032830, 44065660, 88131320]

約数ペア:

[(1, 88131320), (2, 44065660), (4, 22032830), (5, 17626264), (8, 11016415), (10, 8813132), (20, 4406566), (40, 2203283), (409, 215480), (818, 107740), (1636, 53870), (2045, 43096), (3272, 26935), (4090, 21548), (5387, 16360), (8180, 10774)]