About the Number

128072640

128072639 ← → 128072641

2進数表記:111101000100011101111000000

漢数字表記:一億二千八百七万二千六百四十

素因数分解:

2 6 × 3 1 × 5 1 × 71 1 × 1879 1

素因数の和:1970
約数の個数: 112
約数和(自身を含む): 412577280
約数和(自身を除く): 284504640

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 142, 160, 192, 213, 240, 284, 320, 355, 426, 480, 568, 710, 852, 960, 1065, 1136, 1420, 1704, 1879, 2130, 2272, 2840, 3408, 3758, 4260, 4544, 5637, 5680, 6816, 7516, 8520, 9395, 11274, 11360, 13632, 15032, 17040, 18790, 22548, 22720, 28185, 30064, 34080, 37580, 45096, 56370, 60128, 68160, 75160, 90192, 112740, 120256, 133409, 150320, 180384, 225480, 266818, 300640, 360768, 400227, 450960, 533636, 601280, 667045, 800454, 901920, 1067272, 1334090, 1600908, 1803840, 2001135, 2134544, 2668180, 3201816, 4002270, 4269088, 5336360, 6403632, 8004540, 8538176, 10672720, 12807264, 16009080, 21345440, 25614528, 32018160, 42690880, 64036320, 128072640]

約数ペア:
[(1, 128072640), (2, 64036320), (3, 42690880), (4, 32018160), (5, 25614528), (6, 21345440), (8, 16009080), (10, 12807264), (12, 10672720), (15, 8538176), (16, 8004540), (20, 6403632), (24, 5336360), (30, 4269088), (32, 4002270), (40, 3201816), (48, 2668180), (60, 2134544), (64, 2001135), (71, 1803840), (80, 1600908), (96, 1334090), (120, 1067272), (142, 901920), (160, 800454), (192, 667045), (213, 601280), (240, 533636), (284, 450960), (320, 400227), (355, 360768), (426, 300640), (480, 266818), (568, 225480), (710, 180384), (852, 150320), (960, 133409), (1065, 120256), (1136, 112740), (1420, 90192), (1704, 75160), (1879, 68160), (2130, 60128), (2272, 56370), (2840, 45096), (3408, 37580), (3758, 34080), (4260, 30064), (4544, 28185), (5637, 22720), (5680, 22548), (6816, 18790), (7516, 17040), (8520, 15032), (9395, 13632), (11274, 11360)]

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