221719480

素因数分解:

$2^3\times 5^1\times {\mathrm{1307}}^1\times {\mathrm{4241}}^1$

素因数の和:5559

約数の個数: 32

約数和(自身を含む): 499368240

約数和(自身を除く): 277648760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1307, 2614, 4241, 5228, 6535, 8482, 10456, 13070, 16964, 21205, 26140, 33928, 42410, 52280, 84820, 169640, 5542987, 11085974, 22171948, 27714935, 44343896, 55429870, 110859740, 221719480]

約数ペア:

[(1, 221719480), (2, 110859740), (4, 55429870), (5, 44343896), (8, 27714935), (10, 22171948), (20, 11085974), (40, 5542987), (1307, 169640), (2614, 84820), (4241, 52280), (5228, 42410), (6535, 33928), (8482, 26140), (10456, 21205), (13070, 16964)]