About the Number

2168880

2168879 ← → 2168881

2進数表記:1000010001100000110000

漢数字表記:二百十六万八千八百八十

素因数分解:

2 4 × 3 1 × 5 1 × 7 1 × 1291 1

素因数の和:1314
約数の個数: 80
約数和(自身を含む): 7689984
約数和(自身を除く): 5521104

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1291, 1680, 2582, 3873, 5164, 6455, 7746, 9037, 10328, 12910, 15492, 18074, 19365, 20656, 25820, 27111, 30984, 36148, 38730, 45185, 51640, 54222, 61968, 72296, 77460, 90370, 103280, 108444, 135555, 144592, 154920, 180740, 216888, 271110, 309840, 361480, 433776, 542220, 722960, 1084440, 2168880]

約数ペア:
[(1, 2168880), (2, 1084440), (3, 722960), (4, 542220), (5, 433776), (6, 361480), (7, 309840), (8, 271110), (10, 216888), (12, 180740), (14, 154920), (15, 144592), (16, 135555), (20, 108444), (21, 103280), (24, 90370), (28, 77460), (30, 72296), (35, 61968), (40, 54222), (42, 51640), (48, 45185), (56, 38730), (60, 36148), (70, 30984), (80, 27111), (84, 25820), (105, 20656), (112, 19365), (120, 18074), (140, 15492), (168, 12910), (210, 10328), (240, 9037), (280, 7746), (336, 6455), (420, 5164), (560, 3873), (840, 2582), (1291, 1680)]

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