About the Number

81321330

81321329 ← → 81321331

2進数表記:100110110001101110101110010

漢数字表記:八千百三十二万千三百三十

素因数分解:

2 1 × 3 1 × 5 1 × 19 1 × 23 1 × 6203 1

素因数の和:6255
約数の個数: 64
約数和(自身を含む): 214410240
約数和(自身を除く): 133088910

約数列:
[1, 2, 3, 5, 6, 10, 15, 19, 23, 30, 38, 46, 57, 69, 95, 114, 115, 138, 190, 230, 285, 345, 437, 570, 690, 874, 1311, 2185, 2622, 4370, 6203, 6555, 12406, 13110, 18609, 31015, 37218, 62030, 93045, 117857, 142669, 186090, 235714, 285338, 353571, 428007, 589285, 707142, 713345, 856014, 1178570, 1426690, 1767855, 2140035, 2710711, 3535710, 4280070, 5421422, 8132133, 13553555, 16264266, 27107110, 40660665, 81321330]

約数ペア:
[(1, 81321330), (2, 40660665), (3, 27107110), (5, 16264266), (6, 13553555), (10, 8132133), (15, 5421422), (19, 4280070), (23, 3535710), (30, 2710711), (38, 2140035), (46, 1767855), (57, 1426690), (69, 1178570), (95, 856014), (114, 713345), (115, 707142), (138, 589285), (190, 428007), (230, 353571), (285, 285338), (345, 235714), (437, 186090), (570, 142669), (690, 117857), (874, 93045), (1311, 62030), (2185, 37218), (2622, 31015), (4370, 18609), (6203, 13110), (6555, 12406)]

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