257495238

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:531

約数の個数: 192

約数和(自身を含む): 774918144

約数和(自身を除く): 517422906

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 31, 33, 39, 42, 62, 63, 66, 77, 78, 91, 93, 99, 117, 126, 143, 154, 182, 186, 198, 217, 231, 234, 273, 279, 286, 341, 403, 429, 434, 461, 462, 546, 558, 651, 682, 693, 806, 819, 858, 922, 1001, 1023, 1209, 1287, 1302, 1383, 1386, 1638, 1953, 2002, 2046, 2387, 2418, 2574, 2766, 2821, 3003, 3069, 3227, 3627, 3906, 4149, 4433, 4774, 5071, 5642, 5993, 6006, 6138, 6454, 7161, 7254, 8298, 8463, 8866, 9009, 9681, 10142, 11986, 13299, 14291, 14322, 15213, 16926, 17979, 18018, 19362, 21483, 25389, 26598, 28582, 29043, 30426, 31031, 35497, 35958, 39897, 41951, 42873, 42966, 45639, 50778, 53937, 58086, 62062, 65923, 70994, 79794, 83902, 85746, 91278, 93093, 100037, 106491, 107874, 125853, 128619, 131846, 157201, 185783, 186186, 197769, 200074, 212982, 251706, 257238, 279279, 300111, 314402, 319473, 371566, 377559, 395538, 461461, 471603, 557349, 558558, 593307, 600222, 638946, 755118, 900333, 922922, 943206, 1100407, 1114698, 1186614, 1300481, 1384383, 1414809, 1672047, 1800666, 2043613, 2200814, 2600962, 2768766, 2829618, 3301221, 3344094, 3901443, 4087226, 4153149, 6130839, 6602442, 7802886, 8306298, 9903663, 11704329, 12261678, 14305291, 18392517, 19807326, 23408658, 28610582, 36785034, 42915873, 85831746, 128747619, 257495238]

約数ペア:

[(1, 257495238), (2, 128747619), (3, 85831746), (6, 42915873), (7, 36785034), (9, 28610582), (11, 23408658), (13, 19807326), (14, 18392517), (18, 14305291), (21, 12261678), (22, 11704329), (26, 9903663), (31, 8306298), (33, 7802886), (39, 6602442), (42, 6130839), (62, 4153149), (63, 4087226), (66, 3901443), (77, 3344094), (78, 3301221), (91, 2829618), (93, 2768766), (99, 2600962), (117, 2200814), (126, 2043613), (143, 1800666), (154, 1672047), (182, 1414809), (186, 1384383), (198, 1300481), (217, 1186614), (231, 1114698), (234, 1100407), (273, 943206), (279, 922922), (286, 900333), (341, 755118), (403, 638946), (429, 600222), (434, 593307), (461, 558558), (462, 557349), (546, 471603), (558, 461461), (651, 395538), (682, 377559), (693, 371566), (806, 319473), (819, 314402), (858, 300111), (922, 279279), (1001, 257238), (1023, 251706), (1209, 212982), (1287, 200074), (1302, 197769), (1383, 186186), (1386, 185783), (1638, 157201), (1953, 131846), (2002, 128619), (2046, 125853), (2387, 107874), (2418, 106491), (2574, 100037), (2766, 93093), (2821, 91278), (3003, 85746), (3069, 83902), (3227, 79794), (3627, 70994), (3906, 65923), (4149, 62062), (4433, 58086), (4774, 53937), (5071, 50778), (5642, 45639), (5993, 42966), (6006, 42873), (6138, 41951), (6454, 39897), (7161, 35958), (7254, 35497), (8298, 31031), (8463, 30426), (8866, 29043), (9009, 28582), (9681, 26598), (10142, 25389), (11986, 21483), (13299, 19362), (14291, 18018), (14322, 17979), (15213, 16926)]