28256860

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8999}}^1$

素因数の和:9165

約数の個数: 24

約数和(自身を含む): 59724000

約数和(自身を除く): 31467140

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 8999, 17998, 35996, 44995, 89990, 179980, 1412843, 2825686, 5651372, 7064215, 14128430, 28256860]

約数ペア:

[(1, 28256860), (2, 14128430), (4, 7064215), (5, 5651372), (10, 2825686), (20, 1412843), (157, 179980), (314, 89990), (628, 44995), (785, 35996), (1570, 17998), (3140, 8999)]