About the Number

81000738

81000737 ← → 81000739

2進数表記:100110100111111100100100010

漢数字表記:八千百万七百三十八

素因数分解:

2 1 × 3 2 × 7 1 × 13 1 × 49451 1

素因数の和:49479
約数の個数: 48
約数和(自身を含む): 216006336
約数和(自身を除く): 135005598

約数列:
[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 49451, 98902, 148353, 296706, 346157, 445059, 642863, 692314, 890118, 1038471, 1285726, 1928589, 2076942, 3115413, 3857178, 4500041, 5785767, 6230826, 9000082, 11571534, 13500123, 27000246, 40500369, 81000738]

約数ペア:
[(1, 81000738), (2, 40500369), (3, 27000246), (6, 13500123), (7, 11571534), (9, 9000082), (13, 6230826), (14, 5785767), (18, 4500041), (21, 3857178), (26, 3115413), (39, 2076942), (42, 1928589), (63, 1285726), (78, 1038471), (91, 890118), (117, 692314), (126, 642863), (182, 445059), (234, 346157), (273, 296706), (546, 148353), (819, 98902), (1638, 49451)]

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