217456316

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{349}}^1$

素因数の和:412

約数の個数: 108

約数和(自身を含む): 514470600

約数和(自身を除く): 297014284

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 77, 98, 119, 154, 187, 196, 238, 289, 308, 349, 374, 476, 539, 578, 698, 748, 833, 1078, 1156, 1309, 1396, 1666, 2023, 2156, 2443, 2618, 3179, 3332, 3839, 4046, 4886, 5236, 5933, 6358, 7678, 8092, 9163, 9772, 11866, 12716, 14161, 15356, 17101, 18326, 22253, 23732, 26873, 28322, 34202, 36652, 41531, 44506, 53746, 56644, 65263, 68404, 83062, 89012, 100861, 107492, 130526, 155771, 166124, 188111, 201722, 261052, 290717, 311542, 376222, 403444, 456841, 581434, 623084, 706027, 752444, 913682, 1109471, 1162868, 1412054, 1827364, 2218942, 2824108, 3197887, 4437884, 4942189, 6395774, 7766297, 9884378, 12791548, 15532594, 19768756, 31065188, 54364079, 108728158, 217456316]

約数ペア:

[(1, 217456316), (2, 108728158), (4, 54364079), (7, 31065188), (11, 19768756), (14, 15532594), (17, 12791548), (22, 9884378), (28, 7766297), (34, 6395774), (44, 4942189), (49, 4437884), (68, 3197887), (77, 2824108), (98, 2218942), (119, 1827364), (154, 1412054), (187, 1162868), (196, 1109471), (238, 913682), (289, 752444), (308, 706027), (349, 623084), (374, 581434), (476, 456841), (539, 403444), (578, 376222), (698, 311542), (748, 290717), (833, 261052), (1078, 201722), (1156, 188111), (1309, 166124), (1396, 155771), (1666, 130526), (2023, 107492), (2156, 100861), (2443, 89012), (2618, 83062), (3179, 68404), (3332, 65263), (3839, 56644), (4046, 53746), (4886, 44506), (5236, 41531), (5933, 36652), (6358, 34202), (7678, 28322), (8092, 26873), (9163, 23732), (9772, 22253), (11866, 18326), (12716, 17101), (14161, 15356)]