68390780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 147070560

約数和(自身を除く): 78679780

約数列:

[1, 2, 4, 5, 10, 20, 73, 139, 146, 278, 292, 337, 365, 556, 674, 695, 730, 1348, 1390, 1460, 1685, 2780, 3370, 6740, 10147, 20294, 24601, 40588, 46843, 49202, 50735, 93686, 98404, 101470, 123005, 187372, 202940, 234215, 246010, 468430, 492020, 936860, 3419539, 6839078, 13678156, 17097695, 34195390, 68390780]

約数ペア:

[(1, 68390780), (2, 34195390), (4, 17097695), (5, 13678156), (10, 6839078), (20, 3419539), (73, 936860), (139, 492020), (146, 468430), (278, 246010), (292, 234215), (337, 202940), (365, 187372), (556, 123005), (674, 101470), (695, 98404), (730, 93686), (1348, 50735), (1390, 49202), (1460, 46843), (1685, 40588), (2780, 24601), (3370, 20294), (6740, 10147)]