81278156

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{38557}}^1$

素因数の和:38609

約数の個数: 24

約数和(自身を含む): 155465856

約数和(自身を除く): 74187700

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 527, 1054, 2108, 38557, 77114, 154228, 655469, 1195267, 1310938, 2390534, 2621876, 4781068, 20319539, 40639078, 81278156]

約数ペア:

[(1, 81278156), (2, 40639078), (4, 20319539), (17, 4781068), (31, 2621876), (34, 2390534), (62, 1310938), (68, 1195267), (124, 655469), (527, 154228), (1054, 77114), (2108, 38557)]