78640028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{3947}}^1$

素因数の和:4261

約数の個数: 24

約数和(自身を含む): 146249712

約数和(自身を除く): 67609684

約数列:

[1, 2, 4, 17, 34, 68, 293, 586, 1172, 3947, 4981, 7894, 9962, 15788, 19924, 67099, 134198, 268396, 1156471, 2312942, 4625884, 19660007, 39320014, 78640028]

約数ペア:

[(1, 78640028), (2, 39320014), (4, 19660007), (17, 4625884), (34, 2312942), (68, 1156471), (293, 268396), (586, 134198), (1172, 67099), (3947, 19924), (4981, 15788), (7894, 9962)]