81998756

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 178305120

約数和(自身を除く): 96306364

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 97, 98, 133, 194, 196, 227, 266, 388, 454, 532, 679, 908, 931, 1358, 1589, 1843, 1862, 2716, 3178, 3686, 3724, 4313, 4753, 6356, 7372, 8626, 9506, 11123, 12901, 17252, 19012, 22019, 22246, 25802, 30191, 44038, 44492, 51604, 60382, 88076, 90307, 120764, 154133, 180614, 211337, 308266, 361228, 418361, 422674, 616532, 836722, 845348, 1078931, 1673444, 2157862, 2928527, 4315724, 5857054, 11714108, 20499689, 40999378, 81998756]

約数ペア:

[(1, 81998756), (2, 40999378), (4, 20499689), (7, 11714108), (14, 5857054), (19, 4315724), (28, 2928527), (38, 2157862), (49, 1673444), (76, 1078931), (97, 845348), (98, 836722), (133, 616532), (194, 422674), (196, 418361), (227, 361228), (266, 308266), (388, 211337), (454, 180614), (532, 154133), (679, 120764), (908, 90307), (931, 88076), (1358, 60382), (1589, 51604), (1843, 44492), (1862, 44038), (2716, 30191), (3178, 25802), (3686, 22246), (3724, 22019), (4313, 19012), (4753, 17252), (6356, 12901), (7372, 11123), (8626, 9506)]