About the Number

81408138

81408137 ← → 81408139

2進数表記:100110110100011000010001010

漢数字表記:八千百四十万八千百三十八

素因数分解:

2 1 × 3 1 × 7 1 × 17 1 × 113 1 × 1009 1

素因数の和:1151
約数の個数: 64
約数和(自身を含む): 198961920
約数和(自身を除く): 117553782

約数列:
[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 113, 119, 226, 238, 339, 357, 678, 714, 791, 1009, 1582, 1921, 2018, 2373, 3027, 3842, 4746, 5763, 6054, 7063, 11526, 13447, 14126, 17153, 21189, 26894, 34306, 40341, 42378, 51459, 80682, 102918, 114017, 120071, 228034, 240142, 342051, 360213, 684102, 720426, 798119, 1596238, 1938289, 2394357, 3876578, 4788714, 5814867, 11629734, 13568023, 27136046, 40704069, 81408138]

約数ペア:
[(1, 81408138), (2, 40704069), (3, 27136046), (6, 13568023), (7, 11629734), (14, 5814867), (17, 4788714), (21, 3876578), (34, 2394357), (42, 1938289), (51, 1596238), (102, 798119), (113, 720426), (119, 684102), (226, 360213), (238, 342051), (339, 240142), (357, 228034), (678, 120071), (714, 114017), (791, 102918), (1009, 80682), (1582, 51459), (1921, 42378), (2018, 40341), (2373, 34306), (3027, 26894), (3842, 21189), (4746, 17153), (5763, 14126), (6054, 13447), (7063, 11526)]

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