About the Number

31728320

31728319 ← → 31728321

2進数表記:1111001000010001011000000

漢数字表記:三千百七十二万八千三百二十

素因数分解:

2 6 × 5 1 × 13 1 × 29 1 × 263 1

素因数の和:322
約数の個数: 112
約数和(自身を含む): 84490560
約数和(自身を除く): 52762240

約数列:
[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 64, 65, 80, 104, 116, 130, 145, 160, 208, 232, 260, 263, 290, 320, 377, 416, 464, 520, 526, 580, 754, 832, 928, 1040, 1052, 1160, 1315, 1508, 1856, 1885, 2080, 2104, 2320, 2630, 3016, 3419, 3770, 4160, 4208, 4640, 5260, 6032, 6838, 7540, 7627, 8416, 9280, 10520, 12064, 13676, 15080, 15254, 16832, 17095, 21040, 24128, 27352, 30160, 30508, 34190, 38135, 42080, 54704, 60320, 61016, 68380, 76270, 84160, 99151, 109408, 120640, 122032, 136760, 152540, 198302, 218816, 244064, 273520, 305080, 396604, 488128, 495755, 547040, 610160, 793208, 991510, 1094080, 1220320, 1586416, 1983020, 2440640, 3172832, 3966040, 6345664, 7932080, 15864160, 31728320]

約数ペア:
[(1, 31728320), (2, 15864160), (4, 7932080), (5, 6345664), (8, 3966040), (10, 3172832), (13, 2440640), (16, 1983020), (20, 1586416), (26, 1220320), (29, 1094080), (32, 991510), (40, 793208), (52, 610160), (58, 547040), (64, 495755), (65, 488128), (80, 396604), (104, 305080), (116, 273520), (130, 244064), (145, 218816), (160, 198302), (208, 152540), (232, 136760), (260, 122032), (263, 120640), (290, 109408), (320, 99151), (377, 84160), (416, 76270), (464, 68380), (520, 61016), (526, 60320), (580, 54704), (754, 42080), (832, 38135), (928, 34190), (1040, 30508), (1052, 30160), (1160, 27352), (1315, 24128), (1508, 21040), (1856, 17095), (1885, 16832), (2080, 15254), (2104, 15080), (2320, 13676), (2630, 12064), (3016, 10520), (3419, 9280), (3770, 8416), (4160, 7627), (4208, 7540), (4640, 6838), (5260, 6032)]

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