About the Number

1207980720

1207980719 ← → 1207980721

2進数表記:1001000000000000101001010110000

漢数字表記:十二億七百九十八万七百二十

素因数分解:

2 4 × 3 2 × 5 1 × 31 1 × 54121 1

素因数の和:54171
約数の個数: 120
約数和(自身を含む): 4187743872
約数和(自身を除く): 2979763152

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3720, 4464, 5580, 7440, 11160, 22320, 54121, 108242, 162363, 216484, 270605, 324726, 432968, 487089, 541210, 649452, 811815, 865936, 974178, 1082420, 1298904, 1623630, 1677751, 1948356, 2164840, 2435445, 2597808, 3247260, 3355502, 3896712, 4329680, 4870890, 5033253, 6494520, 6711004, 7793424, 8388755, 9741780, 10066506, 12989040, 13422008, 15099759, 16777510, 19483560, 20133012, 25166265, 26844016, 30199518, 33555020, 38967120, 40266024, 50332530, 60399036, 67110040, 75498795, 80532048, 100665060, 120798072, 134220080, 150997590, 201330120, 241596144, 301995180, 402660240, 603990360, 1207980720]

約数ペア:
[(1, 1207980720), (2, 603990360), (3, 402660240), (4, 301995180), (5, 241596144), (6, 201330120), (8, 150997590), (9, 134220080), (10, 120798072), (12, 100665060), (15, 80532048), (16, 75498795), (18, 67110040), (20, 60399036), (24, 50332530), (30, 40266024), (31, 38967120), (36, 33555020), (40, 30199518), (45, 26844016), (48, 25166265), (60, 20133012), (62, 19483560), (72, 16777510), (80, 15099759), (90, 13422008), (93, 12989040), (120, 10066506), (124, 9741780), (144, 8388755), (155, 7793424), (180, 6711004), (186, 6494520), (240, 5033253), (248, 4870890), (279, 4329680), (310, 3896712), (360, 3355502), (372, 3247260), (465, 2597808), (496, 2435445), (558, 2164840), (620, 1948356), (720, 1677751), (744, 1623630), (930, 1298904), (1116, 1082420), (1240, 974178), (1395, 865936), (1488, 811815), (1860, 649452), (2232, 541210), (2480, 487089), (2790, 432968), (3720, 324726), (4464, 270605), (5580, 216484), (7440, 162363), (11160, 108242), (22320, 54121)]

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