890242540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{66337}}^1$

素因数の和:66418

約数の個数: 48

約数和(自身を含む): 2072929824

約数和(自身を除く): 1182687284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 13420, 66337, 132674, 265348, 331685, 663370, 729707, 1326740, 1459414, 2918828, 3648535, 4046557, 7297070, 8093114, 14594140, 16186228, 20232785, 40465570, 44512127, 80931140, 89024254, 178048508, 222560635, 445121270, 890242540]

約数ペア:

[(1, 890242540), (2, 445121270), (4, 222560635), (5, 178048508), (10, 89024254), (11, 80931140), (20, 44512127), (22, 40465570), (44, 20232785), (55, 16186228), (61, 14594140), (110, 8093114), (122, 7297070), (220, 4046557), (244, 3648535), (305, 2918828), (610, 1459414), (671, 1326740), (1220, 729707), (1342, 663370), (2684, 331685), (3355, 265348), (6710, 132674), (13420, 66337)]