About the Number

129872080

129872079 ← → 129872081

2進数表記:111101111011011000011010000

漢数字表記:一億二千九百八十七万二千八十

素因数分解:

2 4 × 5 1 × 13 1 × 151 1 × 827 1

素因数の和:1004
約数の個数: 80
約数和(自身を含む): 327729024
約数和(自身を除く): 197856944

約数列:
[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 151, 208, 260, 302, 520, 604, 755, 827, 1040, 1208, 1510, 1654, 1963, 2416, 3020, 3308, 3926, 4135, 6040, 6616, 7852, 8270, 9815, 10751, 12080, 13232, 15704, 16540, 19630, 21502, 31408, 33080, 39260, 43004, 53755, 66160, 78520, 86008, 107510, 124877, 157040, 172016, 215020, 249754, 430040, 499508, 624385, 860080, 999016, 1248770, 1623401, 1998032, 2497540, 3246802, 4995080, 6493604, 8117005, 9990160, 12987208, 16234010, 25974416, 32468020, 64936040, 129872080]

約数ペア:
[(1, 129872080), (2, 64936040), (4, 32468020), (5, 25974416), (8, 16234010), (10, 12987208), (13, 9990160), (16, 8117005), (20, 6493604), (26, 4995080), (40, 3246802), (52, 2497540), (65, 1998032), (80, 1623401), (104, 1248770), (130, 999016), (151, 860080), (208, 624385), (260, 499508), (302, 430040), (520, 249754), (604, 215020), (755, 172016), (827, 157040), (1040, 124877), (1208, 107510), (1510, 86008), (1654, 78520), (1963, 66160), (2416, 53755), (3020, 43004), (3308, 39260), (3926, 33080), (4135, 31408), (6040, 21502), (6616, 19630), (7852, 16540), (8270, 15704), (9815, 13232), (10751, 12080)]

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