28894160

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5087}}^1$

素因数の和:5171

約数の個数: 40

約数和(自身を含む): 68138496

約数和(自身を除く): 39244336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5087, 5680, 10174, 20348, 25435, 40696, 50870, 81392, 101740, 203480, 361177, 406960, 722354, 1444708, 1805885, 2889416, 3611770, 5778832, 7223540, 14447080, 28894160]

約数ペア:

[(1, 28894160), (2, 14447080), (4, 7223540), (5, 5778832), (8, 3611770), (10, 2889416), (16, 1805885), (20, 1444708), (40, 722354), (71, 406960), (80, 361177), (142, 203480), (284, 101740), (355, 81392), (568, 50870), (710, 40696), (1136, 25435), (1420, 20348), (2840, 10174), (5087, 5680)]