28254490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{647}}^1$

素因数の和:1062

約数の個数: 32

約数和(自身を含む): 55707264

約数和(自身を除く): 27452774

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 397, 647, 794, 1294, 1985, 3235, 3970, 4367, 6470, 7117, 8734, 14234, 21835, 35585, 43670, 71170, 256859, 513718, 1284295, 2568590, 2825449, 5650898, 14127245, 28254490]

約数ペア:

[(1, 28254490), (2, 14127245), (5, 5650898), (10, 2825449), (11, 2568590), (22, 1284295), (55, 513718), (110, 256859), (397, 71170), (647, 43670), (794, 35585), (1294, 21835), (1985, 14234), (3235, 8734), (3970, 7117), (4367, 6470)]