20709786188

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{431}}^1\times {\mathrm{1307}}^1$

素因数の和:1863

約数の個数: 96

約数和(自身を含む): 45186398208

約数和(自身を除く): 24476612020

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 101, 182, 202, 364, 404, 431, 707, 862, 1307, 1313, 1414, 1724, 2614, 2626, 2828, 3017, 5228, 5252, 5603, 6034, 9149, 9191, 11206, 12068, 16991, 18298, 18382, 22412, 33982, 36596, 36764, 39221, 43531, 67964, 78442, 87062, 118937, 132007, 156884, 174124, 237874, 264014, 304717, 475748, 528028, 563317, 565903, 609434, 924049, 1126634, 1131806, 1218868, 1716091, 1848098, 2253268, 2263612, 3432182, 3696196, 3943219, 3961321, 6864364, 7323121, 7886438, 7922642, 12012637, 14646242, 15772876, 15845284, 24025274, 29292484, 48050548, 51261847, 56895017, 102523694, 113790034, 205047388, 227580068, 398265119, 739635221, 796530238, 1479270442, 1593060476, 2958540884, 5177446547, 10354893094, 20709786188]

約数ペア:

[(1, 20709786188), (2, 10354893094), (4, 5177446547), (7, 2958540884), (13, 1593060476), (14, 1479270442), (26, 796530238), (28, 739635221), (52, 398265119), (91, 227580068), (101, 205047388), (182, 113790034), (202, 102523694), (364, 56895017), (404, 51261847), (431, 48050548), (707, 29292484), (862, 24025274), (1307, 15845284), (1313, 15772876), (1414, 14646242), (1724, 12012637), (2614, 7922642), (2626, 7886438), (2828, 7323121), (3017, 6864364), (5228, 3961321), (5252, 3943219), (5603, 3696196), (6034, 3432182), (9149, 2263612), (9191, 2253268), (11206, 1848098), (12068, 1716091), (16991, 1218868), (18298, 1131806), (18382, 1126634), (22412, 924049), (33982, 609434), (36596, 565903), (36764, 563317), (39221, 528028), (43531, 475748), (67964, 304717), (78442, 264014), (87062, 237874), (118937, 174124), (132007, 156884)]