About the Number

20717480

20717479 ← → 20717481

2進数表記:1001111000001111110101000

漢数字表記:二千七十一万七千四百八十

素因数分解:

2 3 × 5 1 × 7 1 × 23 1 × 3217 1

素因数の和:3258
約数の個数: 64
約数和(自身を含む): 55607040
約数和(自身を除く): 34889560

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3217, 3220, 6434, 6440, 12868, 16085, 22519, 25736, 32170, 45038, 64340, 73991, 90076, 112595, 128680, 147982, 180152, 225190, 295964, 369955, 450380, 517937, 591928, 739910, 900760, 1035874, 1479820, 2071748, 2589685, 2959640, 4143496, 5179370, 10358740, 20717480]

約数ペア:
[(1, 20717480), (2, 10358740), (4, 5179370), (5, 4143496), (7, 2959640), (8, 2589685), (10, 2071748), (14, 1479820), (20, 1035874), (23, 900760), (28, 739910), (35, 591928), (40, 517937), (46, 450380), (56, 369955), (70, 295964), (92, 225190), (115, 180152), (140, 147982), (161, 128680), (184, 112595), (230, 90076), (280, 73991), (322, 64340), (460, 45038), (644, 32170), (805, 25736), (920, 22519), (1288, 16085), (1610, 12868), (3217, 6440), (3220, 6434)]

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