About the Number

128940480

128940479 ← → 128940481

2進数表記:111101011110111100111000000

漢数字表記:一億二千八百九十四万四百八十

素因数分解:

2 6 × 3 2 × 5 1 × 44771 1

素因数の和:44794
約数の個数: 84
約数和(自身を含む): 443511432
約数和(自身を除く): 314570952

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 44771, 89542, 134313, 179084, 223855, 268626, 358168, 402939, 447710, 537252, 671565, 716336, 805878, 895420, 1074504, 1343130, 1432672, 1611756, 1790840, 2014695, 2149008, 2686260, 2865344, 3223512, 3581680, 4029390, 4298016, 5372520, 6447024, 7163360, 8058780, 8596032, 10745040, 12894048, 14326720, 16117560, 21490080, 25788096, 32235120, 42980160, 64470240, 128940480]

約数ペア:
[(1, 128940480), (2, 64470240), (3, 42980160), (4, 32235120), (5, 25788096), (6, 21490080), (8, 16117560), (9, 14326720), (10, 12894048), (12, 10745040), (15, 8596032), (16, 8058780), (18, 7163360), (20, 6447024), (24, 5372520), (30, 4298016), (32, 4029390), (36, 3581680), (40, 3223512), (45, 2865344), (48, 2686260), (60, 2149008), (64, 2014695), (72, 1790840), (80, 1611756), (90, 1432672), (96, 1343130), (120, 1074504), (144, 895420), (160, 805878), (180, 716336), (192, 671565), (240, 537252), (288, 447710), (320, 402939), (360, 358168), (480, 268626), (576, 223855), (720, 179084), (960, 134313), (1440, 89542), (2880, 44771)]

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