About the Number

38438640

38438639 ← → 38438641

2進数表記:10010010101000011011110000

漢数字表記:三千八百四十三万八千六百四十

素因数分解:

2 4 × 3 2 × 5 1 × 197 1 × 271 1

素因数の和:487
約数の個数: 120
約数和(自身を含む): 130223808
約数和(自身を除く): 91785168

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 197, 240, 271, 360, 394, 542, 591, 720, 788, 813, 985, 1084, 1182, 1355, 1576, 1626, 1773, 1970, 2168, 2364, 2439, 2710, 2955, 3152, 3252, 3546, 3940, 4065, 4336, 4728, 4878, 5420, 5910, 6504, 7092, 7880, 8130, 8865, 9456, 9756, 10840, 11820, 12195, 13008, 14184, 15760, 16260, 17730, 19512, 21680, 23640, 24390, 28368, 32520, 35460, 39024, 47280, 48780, 53387, 65040, 70920, 97560, 106774, 141840, 160161, 195120, 213548, 266935, 320322, 427096, 480483, 533870, 640644, 800805, 854192, 960966, 1067740, 1281288, 1601610, 1921932, 2135480, 2402415, 2562576, 3203220, 3843864, 4270960, 4804830, 6406440, 7687728, 9609660, 12812880, 19219320, 38438640]

約数ペア:
[(1, 38438640), (2, 19219320), (3, 12812880), (4, 9609660), (5, 7687728), (6, 6406440), (8, 4804830), (9, 4270960), (10, 3843864), (12, 3203220), (15, 2562576), (16, 2402415), (18, 2135480), (20, 1921932), (24, 1601610), (30, 1281288), (36, 1067740), (40, 960966), (45, 854192), (48, 800805), (60, 640644), (72, 533870), (80, 480483), (90, 427096), (120, 320322), (144, 266935), (180, 213548), (197, 195120), (240, 160161), (271, 141840), (360, 106774), (394, 97560), (542, 70920), (591, 65040), (720, 53387), (788, 48780), (813, 47280), (985, 39024), (1084, 35460), (1182, 32520), (1355, 28368), (1576, 24390), (1626, 23640), (1773, 21680), (1970, 19512), (2168, 17730), (2364, 16260), (2439, 15760), (2710, 14184), (2955, 13008), (3152, 12195), (3252, 11820), (3546, 10840), (3940, 9756), (4065, 9456), (4336, 8865), (4728, 8130), (4878, 7880), (5420, 7092), (5910, 6504)]

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