About the Number

128489040

128489039 ← → 128489041

2進数表記:111101010001001011001010000

漢数字表記:一億二千八百四十八万九千四十

素因数分解:

2 4 × 3 2 × 5 1 × 23 1 × 7759 1

素因数の和:7801
約数の個数: 120
約数和(自身を含む): 450328320
約数和(自身を除く): 321839280

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 5520, 7759, 8280, 15518, 16560, 23277, 31036, 38795, 46554, 62072, 69831, 77590, 93108, 116385, 124144, 139662, 155180, 178457, 186216, 232770, 279324, 310360, 349155, 356914, 372432, 465540, 535371, 558648, 620720, 698310, 713828, 892285, 931080, 1070742, 1117296, 1396620, 1427656, 1606113, 1784570, 1862160, 2141484, 2676855, 2793240, 2855312, 3212226, 3569140, 4282968, 5353710, 5586480, 6424452, 7138280, 8030565, 8565936, 10707420, 12848904, 14276560, 16061130, 21414840, 25697808, 32122260, 42829680, 64244520, 128489040]

約数ペア:
[(1, 128489040), (2, 64244520), (3, 42829680), (4, 32122260), (5, 25697808), (6, 21414840), (8, 16061130), (9, 14276560), (10, 12848904), (12, 10707420), (15, 8565936), (16, 8030565), (18, 7138280), (20, 6424452), (23, 5586480), (24, 5353710), (30, 4282968), (36, 3569140), (40, 3212226), (45, 2855312), (46, 2793240), (48, 2676855), (60, 2141484), (69, 1862160), (72, 1784570), (80, 1606113), (90, 1427656), (92, 1396620), (115, 1117296), (120, 1070742), (138, 931080), (144, 892285), (180, 713828), (184, 698310), (207, 620720), (230, 558648), (240, 535371), (276, 465540), (345, 372432), (360, 356914), (368, 349155), (414, 310360), (460, 279324), (552, 232770), (690, 186216), (720, 178457), (828, 155180), (920, 139662), (1035, 124144), (1104, 116385), (1380, 93108), (1656, 77590), (1840, 69831), (2070, 62072), (2760, 46554), (3312, 38795), (4140, 31036), (5520, 23277), (7759, 16560), (8280, 15518)]

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