640907316

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 240

約数和(自身を含む): 2049062400

約数和(自身を除く): 1408155084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 81, 84, 107, 108, 114, 126, 133, 139, 162, 171, 189, 214, 228, 252, 266, 278, 321, 324, 342, 378, 399, 417, 428, 513, 532, 556, 567, 642, 684, 749, 756, 798, 834, 963, 973, 1026, 1134, 1197, 1251, 1284, 1498, 1539, 1596, 1668, 1926, 1946, 2033, 2052, 2247, 2268, 2394, 2502, 2641, 2889, 2919, 2996, 3078, 3591, 3753, 3852, 3892, 4066, 4494, 4788, 5004, 5282, 5778, 5838, 6099, 6156, 6741, 7182, 7506, 7923, 8132, 8667, 8757, 8988, 10564, 10773, 11259, 11556, 11676, 12198, 13482, 14231, 14364, 14873, 15012, 15846, 17334, 17514, 18297, 18487, 20223, 21546, 22518, 23769, 24396, 26271, 26964, 28462, 29746, 31692, 34668, 35028, 36594, 36974, 40446, 42693, 43092, 44619, 45036, 47538, 52542, 54891, 55461, 56924, 59492, 60669, 71307, 73188, 73948, 78813, 80892, 85386, 89238, 95076, 104111, 105084, 109782, 110922, 121338, 128079, 133857, 142614, 157626, 164673, 166383, 170772, 178476, 208222, 213921, 219564, 221844, 242676, 256158, 267714, 282587, 285228, 312333, 315252, 329346, 332766, 384237, 401571, 416444, 427842, 499149, 512316, 535428, 565174, 624666, 658692, 665532, 768474, 803142, 847761, 855684, 936999, 998298, 1130348, 1152711, 1204713, 1249332, 1497447, 1536948, 1606284, 1695522, 1873998, 1978109, 1996596, 2305422, 2409426, 2543283, 2810997, 2994894, 3391044, 3747996, 3956218, 4610844, 4818852, 5086566, 5621994, 5934327, 5989788, 7629849, 7912436, 8432991, 10173132, 11243988, 11868654, 15259698, 16865982, 17802981, 22889547, 23737308, 30519396, 33731964, 35605962, 45779094, 53408943, 71211924, 91558188, 106817886, 160226829, 213635772, 320453658, 640907316]

約数ペア:

[(1, 640907316), (2, 320453658), (3, 213635772), (4, 160226829), (6, 106817886), (7, 91558188), (9, 71211924), (12, 53408943), (14, 45779094), (18, 35605962), (19, 33731964), (21, 30519396), (27, 23737308), (28, 22889547), (36, 17802981), (38, 16865982), (42, 15259698), (54, 11868654), (57, 11243988), (63, 10173132), (76, 8432991), (81, 7912436), (84, 7629849), (107, 5989788), (108, 5934327), (114, 5621994), (126, 5086566), (133, 4818852), (139, 4610844), (162, 3956218), (171, 3747996), (189, 3391044), (214, 2994894), (228, 2810997), (252, 2543283), (266, 2409426), (278, 2305422), (321, 1996596), (324, 1978109), (342, 1873998), (378, 1695522), (399, 1606284), (417, 1536948), (428, 1497447), (513, 1249332), (532, 1204713), (556, 1152711), (567, 1130348), (642, 998298), (684, 936999), (749, 855684), (756, 847761), (798, 803142), (834, 768474), (963, 665532), (973, 658692), (1026, 624666), (1134, 565174), (1197, 535428), (1251, 512316), (1284, 499149), (1498, 427842), (1539, 416444), (1596, 401571), (1668, 384237), (1926, 332766), (1946, 329346), (2033, 315252), (2052, 312333), (2247, 285228), (2268, 282587), (2394, 267714), (2502, 256158), (2641, 242676), (2889, 221844), (2919, 219564), (2996, 213921), (3078, 208222), (3591, 178476), (3753, 170772), (3852, 166383), (3892, 164673), (4066, 157626), (4494, 142614), (4788, 133857), (5004, 128079), (5282, 121338), (5778, 110922), (5838, 109782), (6099, 105084), (6156, 104111), (6741, 95076), (7182, 89238), (7506, 85386), (7923, 80892), (8132, 78813), (8667, 73948), (8757, 73188), (8988, 71307), (10564, 60669), (10773, 59492), (11259, 56924), (11556, 55461), (11676, 54891), (12198, 52542), (13482, 47538), (14231, 45036), (14364, 44619), (14873, 43092), (15012, 42693), (15846, 40446), (17334, 36974), (17514, 36594), (18297, 35028), (18487, 34668), (20223, 31692), (21546, 29746), (22518, 28462), (23769, 26964), (24396, 26271)]