81438224

素因数分解:

$2^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3691}}^1$

素因数の和:3903

約数の個数: 40

約数和(自身を含む): 181291968

約数和(自身を除く): 99853744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 197, 394, 788, 1379, 1576, 2758, 3152, 3691, 5516, 7382, 11032, 14764, 22064, 25837, 29528, 51674, 59056, 103348, 206696, 413392, 727127, 1454254, 2908508, 5089889, 5817016, 10179778, 11634032, 20359556, 40719112, 81438224]

約数ペア:

[(1, 81438224), (2, 40719112), (4, 20359556), (7, 11634032), (8, 10179778), (14, 5817016), (16, 5089889), (28, 2908508), (56, 1454254), (112, 727127), (197, 413392), (394, 206696), (788, 103348), (1379, 59056), (1576, 51674), (2758, 29528), (3152, 25837), (3691, 22064), (5516, 14764), (7382, 11032)]