About the Number

420915040

420915039 ← → 420915041

2進数表記:11001000101101010011101100000

漢数字表記:四億二千九十一万五千四十

素因数分解:

2 5 × 5 1 × 7 1 × 13 1 × 28909 1

素因数の和:28944
約数の個数: 96
約数和(自身を含む): 1223933760
約数和(自身を除く): 803018720

約数列:
[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1456, 1820, 2080, 2912, 3640, 7280, 14560, 28909, 57818, 115636, 144545, 202363, 231272, 289090, 375817, 404726, 462544, 578180, 751634, 809452, 925088, 1011815, 1156360, 1503268, 1618904, 1879085, 2023630, 2312720, 2630719, 3006536, 3237808, 3758170, 4047260, 4625440, 5261438, 6013072, 6475616, 7516340, 8094520, 10522876, 12026144, 13153595, 15032680, 16189040, 21045752, 26307190, 30065360, 32378080, 42091504, 52614380, 60130720, 84183008, 105228760, 210457520, 420915040]

約数ペア:
[(1, 420915040), (2, 210457520), (4, 105228760), (5, 84183008), (7, 60130720), (8, 52614380), (10, 42091504), (13, 32378080), (14, 30065360), (16, 26307190), (20, 21045752), (26, 16189040), (28, 15032680), (32, 13153595), (35, 12026144), (40, 10522876), (52, 8094520), (56, 7516340), (65, 6475616), (70, 6013072), (80, 5261438), (91, 4625440), (104, 4047260), (112, 3758170), (130, 3237808), (140, 3006536), (160, 2630719), (182, 2312720), (208, 2023630), (224, 1879085), (260, 1618904), (280, 1503268), (364, 1156360), (416, 1011815), (455, 925088), (520, 809452), (560, 751634), (728, 578180), (910, 462544), (1040, 404726), (1120, 375817), (1456, 289090), (1820, 231272), (2080, 202363), (2912, 144545), (3640, 115636), (7280, 57818), (14560, 28909)]

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