About the Number

1985280

1985279 ← → 1985281

2進数表記:111100100101100000000

漢数字表記:百九十八万五千二百八十

素因数分解:

2 8 × 3 1 × 5 1 × 11 1 × 47 1

素因数の和:82
約数の個数: 144
約数和(自身を含む): 7064064
約数和(自身を除く): 5078784

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 47, 48, 55, 60, 64, 66, 80, 88, 94, 96, 110, 120, 128, 132, 141, 160, 165, 176, 188, 192, 220, 235, 240, 256, 264, 282, 320, 330, 352, 376, 384, 440, 470, 480, 517, 528, 564, 640, 660, 704, 705, 752, 768, 880, 940, 960, 1034, 1056, 1128, 1280, 1320, 1408, 1410, 1504, 1551, 1760, 1880, 1920, 2068, 2112, 2256, 2585, 2640, 2816, 2820, 3008, 3102, 3520, 3760, 3840, 4136, 4224, 4512, 5170, 5280, 5640, 6016, 6204, 7040, 7520, 7755, 8272, 8448, 9024, 10340, 10560, 11280, 12032, 12408, 14080, 15040, 15510, 16544, 18048, 20680, 21120, 22560, 24816, 30080, 31020, 33088, 36096, 41360, 42240, 45120, 49632, 60160, 62040, 66176, 82720, 90240, 99264, 124080, 132352, 165440, 180480, 198528, 248160, 330880, 397056, 496320, 661760, 992640, 1985280]

約数ペア:
[(1, 1985280), (2, 992640), (3, 661760), (4, 496320), (5, 397056), (6, 330880), (8, 248160), (10, 198528), (11, 180480), (12, 165440), (15, 132352), (16, 124080), (20, 99264), (22, 90240), (24, 82720), (30, 66176), (32, 62040), (33, 60160), (40, 49632), (44, 45120), (47, 42240), (48, 41360), (55, 36096), (60, 33088), (64, 31020), (66, 30080), (80, 24816), (88, 22560), (94, 21120), (96, 20680), (110, 18048), (120, 16544), (128, 15510), (132, 15040), (141, 14080), (160, 12408), (165, 12032), (176, 11280), (188, 10560), (192, 10340), (220, 9024), (235, 8448), (240, 8272), (256, 7755), (264, 7520), (282, 7040), (320, 6204), (330, 6016), (352, 5640), (376, 5280), (384, 5170), (440, 4512), (470, 4224), (480, 4136), (517, 3840), (528, 3760), (564, 3520), (640, 3102), (660, 3008), (704, 2820), (705, 2816), (752, 2640), (768, 2585), (880, 2256), (940, 2112), (960, 2068), (1034, 1920), (1056, 1880), (1128, 1760), (1280, 1551), (1320, 1504), (1408, 1410)]

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