About the Number

81480990720

81480990719 ← → 81480990721

2進数表記:1001011111000101001010100000000000000

漢数字表記:八百十四億八千九十九万七百二十

素因数分解:

2 14 × 3 1 × 5 1 × 331547 1

素因数の和:331583
約数の個数: 120
約数和(自身を含む): 260731999584
約数和(自身を除く): 179251008864

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1536, 1920, 2048, 2560, 3072, 3840, 4096, 5120, 6144, 7680, 8192, 10240, 12288, 15360, 16384, 20480, 24576, 30720, 40960, 49152, 61440, 81920, 122880, 245760, 331547, 663094, 994641, 1326188, 1657735, 1989282, 2652376, 3315470, 3978564, 4973205, 5304752, 6630940, 7957128, 9946410, 10609504, 13261880, 15914256, 19892820, 21219008, 26523760, 31828512, 39785640, 42438016, 53047520, 63657024, 79571280, 84876032, 106095040, 127314048, 159142560, 169752064, 212190080, 254628096, 318285120, 339504128, 424380160, 509256192, 636570240, 679008256, 848760320, 1018512384, 1273140480, 1358016512, 1697520640, 2037024768, 2546280960, 2716033024, 3395041280, 4074049536, 5092561920, 5432066048, 6790082560, 8148099072, 10185123840, 13580165120, 16296198144, 20370247680, 27160330240, 40740495360, 81480990720]

約数ペア:
[(1, 81480990720), (2, 40740495360), (3, 27160330240), (4, 20370247680), (5, 16296198144), (6, 13580165120), (8, 10185123840), (10, 8148099072), (12, 6790082560), (15, 5432066048), (16, 5092561920), (20, 4074049536), (24, 3395041280), (30, 2716033024), (32, 2546280960), (40, 2037024768), (48, 1697520640), (60, 1358016512), (64, 1273140480), (80, 1018512384), (96, 848760320), (120, 679008256), (128, 636570240), (160, 509256192), (192, 424380160), (240, 339504128), (256, 318285120), (320, 254628096), (384, 212190080), (480, 169752064), (512, 159142560), (640, 127314048), (768, 106095040), (960, 84876032), (1024, 79571280), (1280, 63657024), (1536, 53047520), (1920, 42438016), (2048, 39785640), (2560, 31828512), (3072, 26523760), (3840, 21219008), (4096, 19892820), (5120, 15914256), (6144, 13261880), (7680, 10609504), (8192, 9946410), (10240, 7957128), (12288, 6630940), (15360, 5304752), (16384, 4973205), (20480, 3978564), (24576, 3315470), (30720, 2652376), (40960, 1989282), (49152, 1657735), (61440, 1326188), (81920, 994641), (122880, 663094), (245760, 331547)]

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