About the Number

201990720

201990719 ← → 201990721

2進数表記:1100000010100010001001000000

漢数字表記:二億百九十九万七百二十

素因数分解:

2 6 × 3 1 × 5 1 × 210407 1

素因数の和:210427
約数の個数: 56
約数和(自身を含む): 641323584
約数和(自身を除く): 439332864

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, 160, 192, 240, 320, 480, 960, 210407, 420814, 631221, 841628, 1052035, 1262442, 1683256, 2104070, 2524884, 3156105, 3366512, 4208140, 5049768, 6312210, 6733024, 8416280, 10099536, 12624420, 13466048, 16832560, 20199072, 25248840, 33665120, 40398144, 50497680, 67330240, 100995360, 201990720]

約数ペア:
[(1, 201990720), (2, 100995360), (3, 67330240), (4, 50497680), (5, 40398144), (6, 33665120), (8, 25248840), (10, 20199072), (12, 16832560), (15, 13466048), (16, 12624420), (20, 10099536), (24, 8416280), (30, 6733024), (32, 6312210), (40, 5049768), (48, 4208140), (60, 3366512), (64, 3156105), (80, 2524884), (96, 2104070), (120, 1683256), (160, 1262442), (192, 1052035), (240, 841628), (320, 631221), (480, 420814), (960, 210407)]

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