168957580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{1187}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 387991296

約数和(自身を除く): 219033716

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 647, 1187, 1294, 2374, 2588, 3235, 4748, 5935, 6470, 7117, 11870, 12940, 13057, 14234, 23740, 26114, 28468, 35585, 52228, 65285, 71170, 130570, 142340, 261140, 767989, 1535978, 3071956, 3839945, 7679890, 8447879, 15359780, 16895758, 33791516, 42239395, 84478790, 168957580]

約数ペア:

[(1, 168957580), (2, 84478790), (4, 42239395), (5, 33791516), (10, 16895758), (11, 15359780), (20, 8447879), (22, 7679890), (44, 3839945), (55, 3071956), (110, 1535978), (220, 767989), (647, 261140), (1187, 142340), (1294, 130570), (2374, 71170), (2588, 65285), (3235, 52228), (4748, 35585), (5935, 28468), (6470, 26114), (7117, 23740), (11870, 14234), (12940, 13057)]