68949640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{40087}}^1$

素因数の和:40141

約数の個数: 32

約数和(自身を含む): 158748480

約数和(自身を除く): 89798840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 40087, 80174, 160348, 200435, 320696, 400870, 801740, 1603480, 1723741, 3447482, 6894964, 8618705, 13789928, 17237410, 34474820, 68949640]

約数ペア:

[(1, 68949640), (2, 34474820), (4, 17237410), (5, 13789928), (8, 8618705), (10, 6894964), (20, 3447482), (40, 1723741), (43, 1603480), (86, 801740), (172, 400870), (215, 320696), (344, 200435), (430, 160348), (860, 80174), (1720, 40087)]