About the Number

17990856

17990855 ← → 17990857

2進数表記:1000100101000010011001000

漢数字表記:千七百九十九万八百五十六

素因数分解:

2 3 × 3 3 × 13 1 × 43 1 × 149 1

素因数の和:220
約数の個数: 128
約数和(自身を含む): 55440000
約数和(自身を除く): 37449144

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 43, 52, 54, 72, 78, 86, 104, 108, 117, 129, 149, 156, 172, 216, 234, 258, 298, 312, 344, 351, 387, 447, 468, 516, 559, 596, 702, 774, 894, 936, 1032, 1118, 1161, 1192, 1341, 1404, 1548, 1677, 1788, 1937, 2236, 2322, 2682, 2808, 3096, 3354, 3576, 3874, 4023, 4472, 4644, 5031, 5364, 5811, 6407, 6708, 7748, 8046, 9288, 10062, 10728, 11622, 12814, 13416, 15093, 15496, 16092, 17433, 19221, 20124, 23244, 25628, 30186, 32184, 34866, 38442, 40248, 46488, 51256, 52299, 57663, 60372, 69732, 76884, 83291, 104598, 115326, 120744, 139464, 153768, 166582, 172989, 209196, 230652, 249873, 333164, 345978, 418392, 461304, 499746, 666328, 691956, 749619, 999492, 1383912, 1499238, 1998984, 2248857, 2998476, 4497714, 5996952, 8995428, 17990856]

約数ペア:
[(1, 17990856), (2, 8995428), (3, 5996952), (4, 4497714), (6, 2998476), (8, 2248857), (9, 1998984), (12, 1499238), (13, 1383912), (18, 999492), (24, 749619), (26, 691956), (27, 666328), (36, 499746), (39, 461304), (43, 418392), (52, 345978), (54, 333164), (72, 249873), (78, 230652), (86, 209196), (104, 172989), (108, 166582), (117, 153768), (129, 139464), (149, 120744), (156, 115326), (172, 104598), (216, 83291), (234, 76884), (258, 69732), (298, 60372), (312, 57663), (344, 52299), (351, 51256), (387, 46488), (447, 40248), (468, 38442), (516, 34866), (559, 32184), (596, 30186), (702, 25628), (774, 23244), (894, 20124), (936, 19221), (1032, 17433), (1118, 16092), (1161, 15496), (1192, 15093), (1341, 13416), (1404, 12814), (1548, 11622), (1677, 10728), (1788, 10062), (1937, 9288), (2236, 8046), (2322, 7748), (2682, 6708), (2808, 6407), (3096, 5811), (3354, 5364), (3576, 5031), (3874, 4644), (4023, 4472)]

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