28765540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9161}}^1$

素因数の和:9327

約数の個数: 24

約数和(自身を含む): 60799032

約数和(自身を除く): 32033492

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 9161, 18322, 36644, 45805, 91610, 183220, 1438277, 2876554, 5753108, 7191385, 14382770, 28765540]

約数ペア:

[(1, 28765540), (2, 14382770), (4, 7191385), (5, 5753108), (10, 2876554), (20, 1438277), (157, 183220), (314, 91610), (628, 45805), (785, 36644), (1570, 18322), (3140, 9161)]