81865216

素因数分解:

$2^9\times {\mathrm{127}}^1\times {\mathrm{1259}}^1$

素因数の和:1404

約数の個数: 40

約数和(自身を含む): 164989440

約数和(自身を除く): 83124224

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 254, 256, 508, 512, 1016, 1259, 2032, 2518, 4064, 5036, 8128, 10072, 16256, 20144, 32512, 40288, 65024, 80576, 159893, 161152, 319786, 322304, 639572, 644608, 1279144, 2558288, 5116576, 10233152, 20466304, 40932608, 81865216]

約数ペア:

[(1, 81865216), (2, 40932608), (4, 20466304), (8, 10233152), (16, 5116576), (32, 2558288), (64, 1279144), (127, 644608), (128, 639572), (254, 322304), (256, 319786), (508, 161152), (512, 159893), (1016, 80576), (1259, 65024), (2032, 40288), (2518, 32512), (4064, 20144), (5036, 16256), (8128, 10072)]