20122448980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1\times {\mathrm{25577}}^1$

素因数の和:26008

約数の個数: 48

約数和(自身を含む): 42713213760

約数和(自身を除く): 22590764780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 283, 556, 566, 695, 1132, 1390, 1415, 2780, 2830, 5660, 25577, 39337, 51154, 78674, 102308, 127885, 157348, 196685, 255770, 393370, 511540, 786740, 3555203, 7110406, 7238291, 14220812, 14476582, 17776015, 28953164, 35552030, 36191455, 71104060, 72382910, 144765820, 1006122449, 2012244898, 4024489796, 5030612245, 10061224490, 20122448980]

約数ペア:

[(1, 20122448980), (2, 10061224490), (4, 5030612245), (5, 4024489796), (10, 2012244898), (20, 1006122449), (139, 144765820), (278, 72382910), (283, 71104060), (556, 36191455), (566, 35552030), (695, 28953164), (1132, 17776015), (1390, 14476582), (1415, 14220812), (2780, 7238291), (2830, 7110406), (5660, 3555203), (25577, 786740), (39337, 511540), (51154, 393370), (78674, 255770), (102308, 196685), (127885, 157348)]