81563648

素因数分解:

$2^{12}\times {\mathrm{19913}}^1$

素因数の和:19937

約数の個数: 26

約数和(自身を含む): 163115574

約数和(自身を除く): 81551926

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 19913, 39826, 79652, 159304, 318608, 637216, 1274432, 2548864, 5097728, 10195456, 20390912, 40781824, 81563648]

約数ペア:

[(1, 81563648), (2, 40781824), (4, 20390912), (8, 10195456), (16, 5097728), (32, 2548864), (64, 1274432), (128, 637216), (256, 318608), (512, 159304), (1024, 79652), (2048, 39826), (4096, 19913)]