90896180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{110849}}^1$

素因数の和:110899

約数の個数: 24

約数和(自身を含む): 195539400

約数和(自身を除く): 104643220

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 110849, 221698, 443396, 554245, 1108490, 2216980, 4544809, 9089618, 18179236, 22724045, 45448090, 90896180]

約数ペア:

[(1, 90896180), (2, 45448090), (4, 22724045), (5, 18179236), (10, 9089618), (20, 4544809), (41, 2216980), (82, 1108490), (164, 554245), (205, 443396), (410, 221698), (820, 110849)]