About the Number

381003280

381003279 ← → 381003281

2進数表記:10110101101011010011000010000

漢数字表記:三億八千百万三千二百八十

素因数分解:

2 4 × 5 1 × 7 1 × 23 1 × 29581 1

素因数の和:29624
約数の個数: 80
約数和(自身を含む): 1056432384
約数和(自身を除く): 675429104

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 29581, 59162, 118324, 147905, 207067, 236648, 295810, 414134, 473296, 591620, 680363, 828268, 1035335, 1183240, 1360726, 1656536, 2070670, 2366480, 2721452, 3313072, 3401815, 4141340, 4762541, 5442904, 6803630, 8282680, 9525082, 10885808, 13607260, 16565360, 19050164, 23812705, 27214520, 38100328, 47625410, 54429040, 76200656, 95250820, 190501640, 381003280]

約数ペア:
[(1, 381003280), (2, 190501640), (4, 95250820), (5, 76200656), (7, 54429040), (8, 47625410), (10, 38100328), (14, 27214520), (16, 23812705), (20, 19050164), (23, 16565360), (28, 13607260), (35, 10885808), (40, 9525082), (46, 8282680), (56, 6803630), (70, 5442904), (80, 4762541), (92, 4141340), (112, 3401815), (115, 3313072), (140, 2721452), (161, 2366480), (184, 2070670), (230, 1656536), (280, 1360726), (322, 1183240), (368, 1035335), (460, 828268), (560, 680363), (644, 591620), (805, 473296), (920, 414134), (1288, 295810), (1610, 236648), (1840, 207067), (2576, 147905), (3220, 118324), (6440, 59162), (12880, 29581)]

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