20060216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 43256160

約数和(自身を除く): 23195944

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 61, 74, 88, 101, 122, 148, 202, 244, 296, 404, 407, 488, 671, 808, 814, 1111, 1342, 1628, 2222, 2257, 2684, 3256, 3737, 4444, 4514, 5368, 6161, 7474, 8888, 9028, 12322, 14948, 18056, 24644, 24827, 29896, 41107, 49288, 49654, 67771, 82214, 99308, 135542, 164428, 198616, 227957, 271084, 328856, 455914, 542168, 911828, 1823656, 2507527, 5015054, 10030108, 20060216]

約数ペア:

[(1, 20060216), (2, 10030108), (4, 5015054), (8, 2507527), (11, 1823656), (22, 911828), (37, 542168), (44, 455914), (61, 328856), (74, 271084), (88, 227957), (101, 198616), (122, 164428), (148, 135542), (202, 99308), (244, 82214), (296, 67771), (404, 49654), (407, 49288), (488, 41107), (671, 29896), (808, 24827), (814, 24644), (1111, 18056), (1342, 14948), (1628, 12322), (2222, 9028), (2257, 8888), (2684, 7474), (3256, 6161), (3737, 5368), (4444, 4514)]