647579128

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:465

約数の個数: 96

約数和(自身を含む): 1483522560

約数和(自身を除く): 835943432

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 103, 133, 152, 206, 266, 311, 361, 412, 532, 622, 721, 722, 824, 1064, 1244, 1442, 1444, 1957, 2177, 2488, 2527, 2884, 2888, 3914, 4354, 5054, 5768, 5909, 7828, 8708, 10108, 11818, 13699, 15656, 17416, 20216, 23636, 27398, 32033, 37183, 41363, 47272, 54796, 64066, 74366, 82726, 109592, 112271, 128132, 148732, 165452, 224231, 224542, 256264, 260281, 297464, 330904, 448462, 449084, 520562, 608627, 785897, 896924, 898168, 1041124, 1217254, 1571794, 1793848, 2082248, 2434508, 3143588, 4260389, 4869016, 6287176, 8520778, 11563913, 17041556, 23127826, 34083112, 46255652, 80947391, 92511304, 161894782, 323789564, 647579128]

約数ペア:

[(1, 647579128), (2, 323789564), (4, 161894782), (7, 92511304), (8, 80947391), (14, 46255652), (19, 34083112), (28, 23127826), (38, 17041556), (56, 11563913), (76, 8520778), (103, 6287176), (133, 4869016), (152, 4260389), (206, 3143588), (266, 2434508), (311, 2082248), (361, 1793848), (412, 1571794), (532, 1217254), (622, 1041124), (721, 898168), (722, 896924), (824, 785897), (1064, 608627), (1244, 520562), (1442, 449084), (1444, 448462), (1957, 330904), (2177, 297464), (2488, 260281), (2527, 256264), (2884, 224542), (2888, 224231), (3914, 165452), (4354, 148732), (5054, 128132), (5768, 112271), (5909, 109592), (7828, 82726), (8708, 74366), (10108, 64066), (11818, 54796), (13699, 47272), (15656, 41363), (17416, 37183), (20216, 32033), (23636, 27398)]