156974979

素因数分解:

$3^1\times 7^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:118

約数の個数: 80

約数和(自身を含む): 272481280

約数和(自身を除く): 115506301

約数列:

[1, 3, 7, 19, 21, 31, 37, 49, 57, 93, 111, 133, 147, 217, 259, 343, 399, 589, 651, 703, 777, 931, 1029, 1147, 1519, 1767, 1813, 2109, 2401, 2793, 3441, 4123, 4557, 4921, 5439, 6517, 7203, 8029, 10633, 12369, 12691, 14763, 19551, 21793, 24087, 28861, 31899, 34447, 38073, 45619, 56203, 65379, 74431, 86583, 88837, 103341, 136857, 152551, 168609, 202027, 223293, 241129, 266511, 393421, 457653, 606081, 723387, 1067857, 1180263, 1414189, 1687903, 2753947, 3203571, 4242567, 5063709, 7474999, 8261841, 22424997, 52324993, 156974979]

約数ペア:

[(1, 156974979), (3, 52324993), (7, 22424997), (19, 8261841), (21, 7474999), (31, 5063709), (37, 4242567), (49, 3203571), (57, 2753947), (93, 1687903), (111, 1414189), (133, 1180263), (147, 1067857), (217, 723387), (259, 606081), (343, 457653), (399, 393421), (589, 266511), (651, 241129), (703, 223293), (777, 202027), (931, 168609), (1029, 152551), (1147, 136857), (1519, 103341), (1767, 88837), (1813, 86583), (2109, 74431), (2401, 65379), (2793, 56203), (3441, 45619), (4123, 38073), (4557, 34447), (4921, 31899), (5439, 28861), (6517, 24087), (7203, 21793), (8029, 19551), (10633, 14763), (12369, 12691)]