81439904

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{27967}}^1$

素因数の和:27997

約数の個数: 48

約数和(自身を含む): 197342208

約数和(自身を除く): 115902304

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 27967, 55934, 111868, 195769, 223736, 363571, 391538, 447472, 727142, 783076, 894944, 1454284, 1566152, 2544997, 2908568, 3132304, 5089994, 5817136, 6264608, 10179988, 11634272, 20359976, 40719952, 81439904]

約数ペア:

[(1, 81439904), (2, 40719952), (4, 20359976), (7, 11634272), (8, 10179988), (13, 6264608), (14, 5817136), (16, 5089994), (26, 3132304), (28, 2908568), (32, 2544997), (52, 1566152), (56, 1454284), (91, 894944), (104, 783076), (112, 727142), (182, 447472), (208, 391538), (224, 363571), (364, 223736), (416, 195769), (728, 111868), (1456, 55934), (2912, 27967)]