81418216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{2521}}^1$

素因数の和:2905

約数の個数: 32

約数和(自身を含む): 167057280

約数和(自身を除く): 85639064

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 367, 734, 1468, 2521, 2936, 4037, 5042, 8074, 10084, 16148, 20168, 27731, 32296, 55462, 110924, 221848, 925207, 1850414, 3700828, 7401656, 10177277, 20354554, 40709108, 81418216]

約数ペア:

[(1, 81418216), (2, 40709108), (4, 20354554), (8, 10177277), (11, 7401656), (22, 3700828), (44, 1850414), (88, 925207), (367, 221848), (734, 110924), (1468, 55462), (2521, 32296), (2936, 27731), (4037, 20168), (5042, 16148), (8074, 10084)]