25889680

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2969}}^1$

素因数の和:3091

約数の個数: 40

約数和(自身を含む): 60766200

約数和(自身を除く): 34876520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 2969, 4360, 5938, 8720, 11876, 14845, 23752, 29690, 47504, 59380, 118760, 237520, 323621, 647242, 1294484, 1618105, 2588968, 3236210, 5177936, 6472420, 12944840, 25889680]

約数ペア:

[(1, 25889680), (2, 12944840), (4, 6472420), (5, 5177936), (8, 3236210), (10, 2588968), (16, 1618105), (20, 1294484), (40, 647242), (80, 323621), (109, 237520), (218, 118760), (436, 59380), (545, 47504), (872, 29690), (1090, 23752), (1744, 14845), (2180, 11876), (2969, 8720), (4360, 5938)]