81570304

素因数分解:

$2^9\times {\mathrm{313}}^1\times {\mathrm{509}}^1$

素因数の和:840

約数の個数: 40

約数和(自身を含む): 163823220

約数和(自身を除く): 82252916

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 313, 509, 512, 626, 1018, 1252, 2036, 2504, 4072, 5008, 8144, 10016, 16288, 20032, 32576, 40064, 65152, 80128, 130304, 159317, 160256, 260608, 318634, 637268, 1274536, 2549072, 5098144, 10196288, 20392576, 40785152, 81570304]

約数ペア:

[(1, 81570304), (2, 40785152), (4, 20392576), (8, 10196288), (16, 5098144), (32, 2549072), (64, 1274536), (128, 637268), (256, 318634), (313, 260608), (509, 160256), (512, 159317), (626, 130304), (1018, 80128), (1252, 65152), (2036, 40064), (2504, 32576), (4072, 20032), (5008, 16288), (8144, 10016)]