81440492

素因数分解:

$2^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{13043}}^1$

素因数の和:13277

約数の個数: 24

約数和(自身を含む): 163623936

約数和(自身を除く): 82183444

約数列:

[1, 2, 4, 7, 14, 28, 223, 446, 892, 1561, 3122, 6244, 13043, 26086, 52172, 91301, 182602, 365204, 2908589, 5817178, 11634356, 20360123, 40720246, 81440492]

約数ペア:

[(1, 81440492), (2, 40720246), (4, 20360123), (7, 11634356), (14, 5817178), (28, 2908589), (223, 365204), (446, 182602), (892, 91301), (1561, 52172), (3122, 26086), (6244, 13043)]