84876820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{337}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 208766376

約数和(自身を除く): 123889556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 257, 337, 490, 514, 674, 980, 1028, 1285, 1348, 1685, 1799, 2359, 2570, 3370, 3598, 4718, 5140, 6740, 7196, 8995, 9436, 11795, 12593, 16513, 17990, 23590, 25186, 33026, 35980, 47180, 50372, 62965, 66052, 82565, 86609, 125930, 165130, 173218, 251860, 330260, 346436, 433045, 606263, 866090, 1212526, 1732180, 2425052, 3031315, 4243841, 6062630, 8487682, 12125260, 16975364, 21219205, 42438410, 84876820]

約数ペア:

[(1, 84876820), (2, 42438410), (4, 21219205), (5, 16975364), (7, 12125260), (10, 8487682), (14, 6062630), (20, 4243841), (28, 3031315), (35, 2425052), (49, 1732180), (70, 1212526), (98, 866090), (140, 606263), (196, 433045), (245, 346436), (257, 330260), (337, 251860), (490, 173218), (514, 165130), (674, 125930), (980, 86609), (1028, 82565), (1285, 66052), (1348, 62965), (1685, 50372), (1799, 47180), (2359, 35980), (2570, 33026), (3370, 25186), (3598, 23590), (4718, 17990), (5140, 16513), (6740, 12593), (7196, 11795), (8995, 9436)]