13615580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 17834020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 199, 220, 311, 398, 622, 796, 995, 1244, 1555, 1990, 2189, 3110, 3421, 3980, 4378, 6220, 6842, 8756, 10945, 13684, 17105, 21890, 34210, 43780, 61889, 68420, 123778, 247556, 309445, 618890, 680779, 1237780, 1361558, 2723116, 3403895, 6807790, 13615580]

約数ペア:

[(1, 13615580), (2, 6807790), (4, 3403895), (5, 2723116), (10, 1361558), (11, 1237780), (20, 680779), (22, 618890), (44, 309445), (55, 247556), (110, 123778), (199, 68420), (220, 61889), (311, 43780), (398, 34210), (622, 21890), (796, 17105), (995, 13684), (1244, 10945), (1555, 8756), (1990, 6842), (2189, 6220), (3110, 4378), (3421, 3980)]