68712688

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{390413}}^1$

素因数の和:390432

約数の個数: 20

約数和(自身を含む): 145234008

約数和(自身を除く): 76521320

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 390413, 780826, 1561652, 3123304, 4294543, 6246608, 8589086, 17178172, 34356344, 68712688]

約数ペア:

[(1, 68712688), (2, 34356344), (4, 17178172), (8, 8589086), (11, 6246608), (16, 4294543), (22, 3123304), (44, 1561652), (88, 780826), (176, 390413)]