25213804

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1153}}^1$

素因数の和:1246

約数の個数: 48

約数和(自身を含む): 55835136

約数和(自身を除く): 30621332

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 994, 1153, 1562, 1988, 2306, 3124, 4612, 5467, 8071, 10934, 12683, 16142, 21868, 25366, 32284, 50732, 81863, 88781, 163726, 177562, 327452, 355124, 573041, 900493, 1146082, 1800986, 2292164, 3601972, 6303451, 12606902, 25213804]

約数ペア:

[(1, 25213804), (2, 12606902), (4, 6303451), (7, 3601972), (11, 2292164), (14, 1800986), (22, 1146082), (28, 900493), (44, 573041), (71, 355124), (77, 327452), (142, 177562), (154, 163726), (284, 88781), (308, 81863), (497, 50732), (781, 32284), (994, 25366), (1153, 21868), (1562, 16142), (1988, 12683), (2306, 10934), (3124, 8071), (4612, 5467)]