About the Number

28647390

28647389 ← → 28647391

2進数表記:1101101010001111111011110

漢数字表記:二千八百六十四万七千三百九十

素因数分解:

2 1 × 3 1 × 5 1 × 73 1 × 103 1 × 127 1

素因数の和:313
約数の個数: 64
約数和(自身を含む): 70926336
約数和(自身を除く): 42278946

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 73, 103, 127, 146, 206, 219, 254, 309, 365, 381, 438, 515, 618, 635, 730, 762, 1030, 1095, 1270, 1545, 1905, 2190, 3090, 3810, 7519, 9271, 13081, 15038, 18542, 22557, 26162, 27813, 37595, 39243, 45114, 46355, 55626, 65405, 75190, 78486, 92710, 112785, 130810, 139065, 196215, 225570, 278130, 392430, 954913, 1909826, 2864739, 4774565, 5729478, 9549130, 14323695, 28647390]

約数ペア:
[(1, 28647390), (2, 14323695), (3, 9549130), (5, 5729478), (6, 4774565), (10, 2864739), (15, 1909826), (30, 954913), (73, 392430), (103, 278130), (127, 225570), (146, 196215), (206, 139065), (219, 130810), (254, 112785), (309, 92710), (365, 78486), (381, 75190), (438, 65405), (515, 55626), (618, 46355), (635, 45114), (730, 39243), (762, 37595), (1030, 27813), (1095, 26162), (1270, 22557), (1545, 18542), (1905, 15038), (2190, 13081), (3090, 9271), (3810, 7519)]

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