21872080

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11887}}^1$

素因数の和:11923

約数の個数: 40

約数和(自身を含む): 53068032

約数和(自身を除く): 31195952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11887, 23774, 47548, 59435, 95096, 118870, 190192, 237740, 273401, 475480, 546802, 950960, 1093604, 1367005, 2187208, 2734010, 4374416, 5468020, 10936040, 21872080]

約数ペア:

[(1, 21872080), (2, 10936040), (4, 5468020), (5, 4374416), (8, 2734010), (10, 2187208), (16, 1367005), (20, 1093604), (23, 950960), (40, 546802), (46, 475480), (80, 273401), (92, 237740), (115, 190192), (184, 118870), (230, 95096), (368, 59435), (460, 47548), (920, 23774), (1840, 11887)]