About the Number

28888640

28888639 ← → 28888641

2進数表記:1101110001100111001000000

漢数字表記:二千八百八十八万八千六百四十

素因数分解:

2 6 × 5 1 × 11 1 × 29 1 × 283 1

素因数の和:340
約数の個数: 112
約数和(自身を含む): 77906880
約数和(自身を除く): 49018240

約数列:
[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 110, 116, 145, 160, 176, 220, 232, 283, 290, 319, 320, 352, 440, 464, 566, 580, 638, 704, 880, 928, 1132, 1160, 1276, 1415, 1595, 1760, 1856, 2264, 2320, 2552, 2830, 3113, 3190, 3520, 4528, 4640, 5104, 5660, 6226, 6380, 8207, 9056, 9280, 10208, 11320, 12452, 12760, 15565, 16414, 18112, 20416, 22640, 24904, 25520, 31130, 32828, 41035, 45280, 49808, 51040, 62260, 65656, 82070, 90277, 90560, 99616, 102080, 124520, 131312, 164140, 180554, 199232, 249040, 262624, 328280, 361108, 451385, 498080, 525248, 656560, 722216, 902770, 996160, 1313120, 1444432, 1805540, 2626240, 2888864, 3611080, 5777728, 7222160, 14444320, 28888640]

約数ペア:
[(1, 28888640), (2, 14444320), (4, 7222160), (5, 5777728), (8, 3611080), (10, 2888864), (11, 2626240), (16, 1805540), (20, 1444432), (22, 1313120), (29, 996160), (32, 902770), (40, 722216), (44, 656560), (55, 525248), (58, 498080), (64, 451385), (80, 361108), (88, 328280), (110, 262624), (116, 249040), (145, 199232), (160, 180554), (176, 164140), (220, 131312), (232, 124520), (283, 102080), (290, 99616), (319, 90560), (320, 90277), (352, 82070), (440, 65656), (464, 62260), (566, 51040), (580, 49808), (638, 45280), (704, 41035), (880, 32828), (928, 31130), (1132, 25520), (1160, 24904), (1276, 22640), (1415, 20416), (1595, 18112), (1760, 16414), (1856, 15565), (2264, 12760), (2320, 12452), (2552, 11320), (2830, 10208), (3113, 9280), (3190, 9056), (3520, 8207), (4528, 6380), (4640, 6226), (5104, 5660)]

このpageの処理時間: 0.007588386535644531 seconds