About the Number

231995988

231995987 ← → 231995989

2進数表記:1101110100111111101001010100

漢数字表記:二億三千百九十九万五千九百八十八

素因数分解:

2 2 × 3 5 × 7 2 × 4871 1

素因数の和:4904
約数の個数: 108
約数和(自身を含む): 707589792
約数和(自身を除く): 475593804

約数列:
[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 243, 252, 294, 324, 378, 441, 486, 567, 588, 756, 882, 972, 1134, 1323, 1701, 1764, 2268, 2646, 3402, 3969, 4871, 5292, 6804, 7938, 9742, 11907, 14613, 15876, 19484, 23814, 29226, 34097, 43839, 47628, 58452, 68194, 87678, 102291, 131517, 136388, 175356, 204582, 238679, 263034, 306873, 394551, 409164, 477358, 526068, 613746, 716037, 789102, 920619, 954716, 1183653, 1227492, 1432074, 1578204, 1841238, 2148111, 2367306, 2761857, 2864148, 3682476, 4296222, 4734612, 5523714, 6444333, 8285571, 8592444, 11047428, 12888666, 16571142, 19332999, 25777332, 33142284, 38665998, 57998997, 77331996, 115997994, 231995988]

約数ペア:
[(1, 231995988), (2, 115997994), (3, 77331996), (4, 57998997), (6, 38665998), (7, 33142284), (9, 25777332), (12, 19332999), (14, 16571142), (18, 12888666), (21, 11047428), (27, 8592444), (28, 8285571), (36, 6444333), (42, 5523714), (49, 4734612), (54, 4296222), (63, 3682476), (81, 2864148), (84, 2761857), (98, 2367306), (108, 2148111), (126, 1841238), (147, 1578204), (162, 1432074), (189, 1227492), (196, 1183653), (243, 954716), (252, 920619), (294, 789102), (324, 716037), (378, 613746), (441, 526068), (486, 477358), (567, 409164), (588, 394551), (756, 306873), (882, 263034), (972, 238679), (1134, 204582), (1323, 175356), (1701, 136388), (1764, 131517), (2268, 102291), (2646, 87678), (3402, 68194), (3969, 58452), (4871, 47628), (5292, 43839), (6804, 34097), (7938, 29226), (9742, 23814), (11907, 19484), (14613, 15876)]

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