About the Number

28761840

28761839 ← → 28761841

2進数表記:1101101101101111011110000

漢数字表記:二千八百七十六万千八百四十

素因数分解:

2 4 × 3 2 × 5 1 × 43 1 × 929 1

素因数の和:991
約数の個数: 120
約数和(自身を含む): 98944560
約数和(自身を除く): 70182720

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 929, 1032, 1290, 1548, 1720, 1858, 1935, 2064, 2580, 2787, 3096, 3440, 3716, 3870, 4645, 5160, 5574, 6192, 7432, 7740, 8361, 9290, 10320, 11148, 13935, 14864, 15480, 16722, 18580, 22296, 27870, 30960, 33444, 37160, 39947, 41805, 44592, 55740, 66888, 74320, 79894, 83610, 111480, 119841, 133776, 159788, 167220, 199735, 222960, 239682, 319576, 334440, 359523, 399470, 479364, 599205, 639152, 668880, 719046, 798940, 958728, 1198410, 1438092, 1597880, 1797615, 1917456, 2396820, 2876184, 3195760, 3595230, 4793640, 5752368, 7190460, 9587280, 14380920, 28761840]

約数ペア:
[(1, 28761840), (2, 14380920), (3, 9587280), (4, 7190460), (5, 5752368), (6, 4793640), (8, 3595230), (9, 3195760), (10, 2876184), (12, 2396820), (15, 1917456), (16, 1797615), (18, 1597880), (20, 1438092), (24, 1198410), (30, 958728), (36, 798940), (40, 719046), (43, 668880), (45, 639152), (48, 599205), (60, 479364), (72, 399470), (80, 359523), (86, 334440), (90, 319576), (120, 239682), (129, 222960), (144, 199735), (172, 167220), (180, 159788), (215, 133776), (240, 119841), (258, 111480), (344, 83610), (360, 79894), (387, 74320), (430, 66888), (516, 55740), (645, 44592), (688, 41805), (720, 39947), (774, 37160), (860, 33444), (929, 30960), (1032, 27870), (1290, 22296), (1548, 18580), (1720, 16722), (1858, 15480), (1935, 14864), (2064, 13935), (2580, 11148), (2787, 10320), (3096, 9290), (3440, 8361), (3716, 7740), (3870, 7432), (4645, 6192), (5160, 5574)]

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