About the Number

201217920

201217919 ← → 201217921

2進数表記:1011111111100101011110000000

漢数字表記:二億百二十一万七千九百二十

素因数分解:

2 7 × 3 1 × 5 1 × 104801 1

素因数の和:104823
約数の個数: 64
約数和(自身を含む): 641388240
約数和(自身を除く): 440170320

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, 320, 384, 480, 640, 960, 1920, 104801, 209602, 314403, 419204, 524005, 628806, 838408, 1048010, 1257612, 1572015, 1676816, 2096020, 2515224, 3144030, 3353632, 4192040, 5030448, 6288060, 6707264, 8384080, 10060896, 12576120, 13414528, 16768160, 20121792, 25152240, 33536320, 40243584, 50304480, 67072640, 100608960, 201217920]

約数ペア:
[(1, 201217920), (2, 100608960), (3, 67072640), (4, 50304480), (5, 40243584), (6, 33536320), (8, 25152240), (10, 20121792), (12, 16768160), (15, 13414528), (16, 12576120), (20, 10060896), (24, 8384080), (30, 6707264), (32, 6288060), (40, 5030448), (48, 4192040), (60, 3353632), (64, 3144030), (80, 2515224), (96, 2096020), (120, 1676816), (128, 1572015), (160, 1257612), (192, 1048010), (240, 838408), (320, 628806), (384, 524005), (480, 419204), (640, 314403), (960, 209602), (1920, 104801)]

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