About the Number

129880989

129880988 ← → 129880990

2進数表記:111101111011101001110011101

漢数字表記:一億二千九百八十八万九百八十九

素因数分解:

3 4 × 7 1 × 37 1 × 41 1 × 151 1

素因数の和:248
約数の個数: 80
約数和(自身を含む): 234829056
約数和(自身を除く): 104948067

約数列:
[1, 3, 7, 9, 21, 27, 37, 41, 63, 81, 111, 123, 151, 189, 259, 287, 333, 369, 453, 567, 777, 861, 999, 1057, 1107, 1359, 1517, 2331, 2583, 2997, 3171, 3321, 4077, 4551, 5587, 6191, 6993, 7749, 9513, 10619, 12231, 13653, 16761, 18573, 20979, 23247, 28539, 31857, 39109, 40959, 43337, 50283, 55719, 85617, 95571, 117327, 122877, 130011, 150849, 167157, 229067, 286713, 351981, 390033, 452547, 501471, 687201, 860139, 1055943, 1170099, 1603469, 2061603, 3167829, 3510297, 4810407, 6184809, 14431221, 18554427, 43293663, 129880989]

約数ペア:
[(1, 129880989), (3, 43293663), (7, 18554427), (9, 14431221), (21, 6184809), (27, 4810407), (37, 3510297), (41, 3167829), (63, 2061603), (81, 1603469), (111, 1170099), (123, 1055943), (151, 860139), (189, 687201), (259, 501471), (287, 452547), (333, 390033), (369, 351981), (453, 286713), (567, 229067), (777, 167157), (861, 150849), (999, 130011), (1057, 122877), (1107, 117327), (1359, 95571), (1517, 85617), (2331, 55719), (2583, 50283), (2997, 43337), (3171, 40959), (3321, 39109), (4077, 31857), (4551, 28539), (5587, 23247), (6191, 20979), (6993, 18573), (7749, 16761), (9513, 13653), (10619, 12231)]

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