80287184

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{122389}}^1$

素因数の和:122438

約数の個数: 20

約数和(自身を含む): 159351780

約数和(自身を除く): 79064596

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 122389, 244778, 489556, 979112, 1958224, 5017949, 10035898, 20071796, 40143592, 80287184]

約数ペア:

[(1, 80287184), (2, 40143592), (4, 20071796), (8, 10035898), (16, 5017949), (41, 1958224), (82, 979112), (164, 489556), (328, 244778), (656, 122389)]