12245420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{55661}}^1$

素因数の和:55681

約数の個数: 24

約数和(自身を含む): 28053648

約数和(自身を除く): 15808228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 55661, 111322, 222644, 278305, 556610, 612271, 1113220, 1224542, 2449084, 3061355, 6122710, 12245420]

約数ペア:

[(1, 12245420), (2, 6122710), (4, 3061355), (5, 2449084), (10, 1224542), (11, 1113220), (20, 612271), (22, 556610), (44, 278305), (55, 222644), (110, 111322), (220, 55661)]