20163485279

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{643}}^1$

素因数の和:868

約数の個数: 64

約数和(自身を含む): 25513033728

約数和(自身を除く): 5349548449

約数列:

[1, 7, 23, 31, 61, 103, 161, 217, 427, 643, 713, 721, 1403, 1891, 2369, 3193, 4501, 4991, 6283, 9821, 13237, 14789, 16583, 19933, 22351, 39223, 43493, 43981, 66229, 73439, 103523, 139531, 144509, 194773, 274561, 304451, 458459, 463603, 514073, 902129, 1011563, 1215913, 1363411, 1523267, 2053099, 3209213, 4039969, 4479779, 6314903, 8511391, 10662869, 14371693, 27965999, 28279783, 31358453, 47221277, 92919287, 125239039, 195761993, 330548939, 650435009, 876673273, 2880497897, 20163485279]

約数ペア:

[(1, 20163485279), (7, 2880497897), (23, 876673273), (31, 650435009), (61, 330548939), (103, 195761993), (161, 125239039), (217, 92919287), (427, 47221277), (643, 31358453), (713, 28279783), (721, 27965999), (1403, 14371693), (1891, 10662869), (2369, 8511391), (3193, 6314903), (4501, 4479779), (4991, 4039969), (6283, 3209213), (9821, 2053099), (13237, 1523267), (14789, 1363411), (16583, 1215913), (19933, 1011563), (22351, 902129), (39223, 514073), (43493, 463603), (43981, 458459), (66229, 304451), (73439, 274561), (103523, 194773), (139531, 144509)]