81132928

素因数分解:

$2^7\times {\mathrm{61}}^1\times {\mathrm{10391}}^1$

素因数の和:10466

約数の個数: 32

約数和(自身を含む): 164297520

約数和(自身を除く): 83164592

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 488, 976, 1952, 3904, 7808, 10391, 20782, 41564, 83128, 166256, 332512, 633851, 665024, 1267702, 1330048, 2535404, 5070808, 10141616, 20283232, 40566464, 81132928]

約数ペア:

[(1, 81132928), (2, 40566464), (4, 20283232), (8, 10141616), (16, 5070808), (32, 2535404), (61, 1330048), (64, 1267702), (122, 665024), (128, 633851), (244, 332512), (488, 166256), (976, 83128), (1952, 41564), (3904, 20782), (7808, 10391)]