About the Number

13217280

13217279 ← → 13217281

2進数表記:110010011010111000000000

漢数字表記:千三百二十一万七千二百八十

素因数分解:

2 9 × 3 1 × 5 1 × 1721 1

素因数の和:1747
約数の個数: 80
約数和(自身を含む): 42278544
約数和(自身を除く): 29061264

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1721, 1920, 2560, 3442, 3840, 5163, 6884, 7680, 8605, 10326, 13768, 17210, 20652, 25815, 27536, 34420, 41304, 51630, 55072, 68840, 82608, 103260, 110144, 137680, 165216, 206520, 220288, 275360, 330432, 413040, 440576, 550720, 660864, 826080, 881152, 1101440, 1321728, 1652160, 2202880, 2643456, 3304320, 4405760, 6608640, 13217280]

約数ペア:
[(1, 13217280), (2, 6608640), (3, 4405760), (4, 3304320), (5, 2643456), (6, 2202880), (8, 1652160), (10, 1321728), (12, 1101440), (15, 881152), (16, 826080), (20, 660864), (24, 550720), (30, 440576), (32, 413040), (40, 330432), (48, 275360), (60, 220288), (64, 206520), (80, 165216), (96, 137680), (120, 110144), (128, 103260), (160, 82608), (192, 68840), (240, 55072), (256, 51630), (320, 41304), (384, 34420), (480, 27536), (512, 25815), (640, 20652), (768, 17210), (960, 13768), (1280, 10326), (1536, 8605), (1721, 7680), (1920, 6884), (2560, 5163), (3442, 3840)]

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