8654140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 20039040

約数和(自身を除く): 11384900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 283, 556, 566, 695, 1132, 1390, 1415, 1529, 2780, 2830, 3058, 3113, 5660, 6116, 6226, 7645, 12452, 15290, 15565, 30580, 31130, 39337, 62260, 78674, 157348, 196685, 393370, 432707, 786740, 865414, 1730828, 2163535, 4327070, 8654140]

約数ペア:

[(1, 8654140), (2, 4327070), (4, 2163535), (5, 1730828), (10, 865414), (11, 786740), (20, 432707), (22, 393370), (44, 196685), (55, 157348), (110, 78674), (139, 62260), (220, 39337), (278, 31130), (283, 30580), (556, 15565), (566, 15290), (695, 12452), (1132, 7645), (1390, 6226), (1415, 6116), (1529, 5660), (2780, 3113), (2830, 3058)]