20655204

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^2$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 54462240

約数和(自身を除く): 33807036

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 38, 51, 57, 68, 73, 76, 102, 114, 146, 204, 219, 228, 292, 323, 438, 646, 876, 969, 1241, 1292, 1387, 1938, 2482, 2774, 3723, 3876, 4161, 4964, 5329, 5548, 7446, 8322, 10658, 14892, 15987, 16644, 21316, 23579, 31974, 47158, 63948, 70737, 90593, 94316, 101251, 141474, 181186, 202502, 271779, 282948, 303753, 362372, 405004, 543558, 607506, 1087116, 1215012, 1721267, 3442534, 5163801, 6885068, 10327602, 20655204]

約数ペア:

[(1, 20655204), (2, 10327602), (3, 6885068), (4, 5163801), (6, 3442534), (12, 1721267), (17, 1215012), (19, 1087116), (34, 607506), (38, 543558), (51, 405004), (57, 362372), (68, 303753), (73, 282948), (76, 271779), (102, 202502), (114, 181186), (146, 141474), (204, 101251), (219, 94316), (228, 90593), (292, 70737), (323, 63948), (438, 47158), (646, 31974), (876, 23579), (969, 21316), (1241, 16644), (1292, 15987), (1387, 14892), (1938, 10658), (2482, 8322), (2774, 7446), (3723, 5548), (3876, 5329), (4161, 4964)]