About the Number

128020080

128020079 ← → 128020081

2進数表記:111101000010110111001110000

漢数字表記:一億二千八百二万八十

素因数分解:

2 4 × 3 1 × 5 1 × 31 1 × 17207 1

素因数の和:17254
約数の個数: 80
約数和(自身を含む): 409688064
約数和(自身を除く): 281667984

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 17207, 34414, 51621, 68828, 86035, 103242, 137656, 172070, 206484, 258105, 275312, 344140, 412968, 516210, 533417, 688280, 825936, 1032420, 1066834, 1376560, 1600251, 2064840, 2133668, 2667085, 3200502, 4129680, 4267336, 5334170, 6401004, 8001255, 8534672, 10668340, 12802008, 16002510, 21336680, 25604016, 32005020, 42673360, 64010040, 128020080]

約数ペア:
[(1, 128020080), (2, 64010040), (3, 42673360), (4, 32005020), (5, 25604016), (6, 21336680), (8, 16002510), (10, 12802008), (12, 10668340), (15, 8534672), (16, 8001255), (20, 6401004), (24, 5334170), (30, 4267336), (31, 4129680), (40, 3200502), (48, 2667085), (60, 2133668), (62, 2064840), (80, 1600251), (93, 1376560), (120, 1066834), (124, 1032420), (155, 825936), (186, 688280), (240, 533417), (248, 516210), (310, 412968), (372, 344140), (465, 275312), (496, 258105), (620, 206484), (744, 172070), (930, 137656), (1240, 103242), (1488, 86035), (1860, 68828), (2480, 51621), (3720, 34414), (7440, 17207)]

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