81986884

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{40111}}^1$

素因数の和:40195

約数の個数: 24

約数和(自身を含む): 166224128

約数和(自身を除く): 84237244

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 40111, 80222, 160444, 280777, 561554, 1123108, 2928103, 5856206, 11712412, 20496721, 40993442, 81986884]

約数ペア:

[(1, 81986884), (2, 40993442), (4, 20496721), (7, 11712412), (14, 5856206), (28, 2928103), (73, 1123108), (146, 561554), (292, 280777), (511, 160444), (1022, 80222), (2044, 40111)]