99915980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 213749760

約数和(自身を除く): 113833780

約数列:

[1, 2, 4, 5, 10, 20, 127, 139, 254, 278, 283, 508, 556, 566, 635, 695, 1132, 1270, 1390, 1415, 2540, 2780, 2830, 5660, 17653, 35306, 35941, 39337, 70612, 71882, 78674, 88265, 143764, 157348, 176530, 179705, 196685, 353060, 359410, 393370, 718820, 786740, 4995799, 9991598, 19983196, 24978995, 49957990, 99915980]

約数ペア:

[(1, 99915980), (2, 49957990), (4, 24978995), (5, 19983196), (10, 9991598), (20, 4995799), (127, 786740), (139, 718820), (254, 393370), (278, 359410), (283, 353060), (508, 196685), (556, 179705), (566, 176530), (635, 157348), (695, 143764), (1132, 88265), (1270, 78674), (1390, 71882), (1415, 70612), (2540, 39337), (2780, 35941), (2830, 35306), (5660, 17653)]