About the Number

81428160

81428159 ← → 81428161

2進数表記:100110110100111111011000000

漢数字表記:八千百四十二万八千百六十

素因数分解:

2 6 × 3 1 × 5 1 × 11 2 × 701 1

素因数の和:743
約数の個数: 168
約数和(自身を含む): 284579568
約数和(自身を除く): 203151408

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 121, 132, 160, 165, 176, 192, 220, 240, 242, 264, 320, 330, 352, 363, 440, 480, 484, 528, 605, 660, 701, 704, 726, 880, 960, 968, 1056, 1210, 1320, 1402, 1452, 1760, 1815, 1936, 2103, 2112, 2420, 2640, 2804, 2904, 3505, 3520, 3630, 3872, 4206, 4840, 5280, 5608, 5808, 7010, 7260, 7711, 7744, 8412, 9680, 10515, 10560, 11216, 11616, 14020, 14520, 15422, 16824, 19360, 21030, 22432, 23133, 23232, 28040, 29040, 30844, 33648, 38555, 38720, 42060, 44864, 46266, 56080, 58080, 61688, 67296, 77110, 84120, 84821, 92532, 112160, 115665, 116160, 123376, 134592, 154220, 168240, 169642, 185064, 224320, 231330, 246752, 254463, 308440, 336480, 339284, 370128, 424105, 462660, 493504, 508926, 616880, 672960, 678568, 740256, 848210, 925320, 1017852, 1233760, 1272315, 1357136, 1480512, 1696420, 1850640, 2035704, 2467520, 2544630, 2714272, 3392840, 3701280, 4071408, 5089260, 5428544, 6785680, 7402560, 8142816, 10178520, 13571360, 16285632, 20357040, 27142720, 40714080, 81428160]

約数ペア:
[(1, 81428160), (2, 40714080), (3, 27142720), (4, 20357040), (5, 16285632), (6, 13571360), (8, 10178520), (10, 8142816), (11, 7402560), (12, 6785680), (15, 5428544), (16, 5089260), (20, 4071408), (22, 3701280), (24, 3392840), (30, 2714272), (32, 2544630), (33, 2467520), (40, 2035704), (44, 1850640), (48, 1696420), (55, 1480512), (60, 1357136), (64, 1272315), (66, 1233760), (80, 1017852), (88, 925320), (96, 848210), (110, 740256), (120, 678568), (121, 672960), (132, 616880), (160, 508926), (165, 493504), (176, 462660), (192, 424105), (220, 370128), (240, 339284), (242, 336480), (264, 308440), (320, 254463), (330, 246752), (352, 231330), (363, 224320), (440, 185064), (480, 169642), (484, 168240), (528, 154220), (605, 134592), (660, 123376), (701, 116160), (704, 115665), (726, 112160), (880, 92532), (960, 84821), (968, 84120), (1056, 77110), (1210, 67296), (1320, 61688), (1402, 58080), (1452, 56080), (1760, 46266), (1815, 44864), (1936, 42060), (2103, 38720), (2112, 38555), (2420, 33648), (2640, 30844), (2804, 29040), (2904, 28040), (3505, 23232), (3520, 23133), (3630, 22432), (3872, 21030), (4206, 19360), (4840, 16824), (5280, 15422), (5608, 14520), (5808, 14020), (7010, 11616), (7260, 11216), (7711, 10560), (7744, 10515), (8412, 9680)]

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