12821680

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{547}}^1$

素因数の和:853

約数の個数: 40

約数和(自身を含む): 29966832

約数和(自身を除く): 17145152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 547, 586, 1094, 1172, 1465, 2188, 2344, 2735, 2930, 4376, 4688, 5470, 5860, 8752, 10940, 11720, 21880, 23440, 43760, 160271, 320542, 641084, 801355, 1282168, 1602710, 2564336, 3205420, 6410840, 12821680]

約数ペア:

[(1, 12821680), (2, 6410840), (4, 3205420), (5, 2564336), (8, 1602710), (10, 1282168), (16, 801355), (20, 641084), (40, 320542), (80, 160271), (293, 43760), (547, 23440), (586, 21880), (1094, 11720), (1172, 10940), (1465, 8752), (2188, 5860), (2344, 5470), (2735, 4688), (2930, 4376)]