About the Number

81355248

81355247 ← → 81355249

2進数表記:100110110010110000111110000

漢数字表記:八千百三十五万五千二百四十八

素因数分解:

2 4 × 3 2 × 13 2 × 3343 1

素因数の和:3383
約数の個数: 90
約数和(自身を含む): 246616656
約数和(自身を除く): 165261408

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 169, 208, 234, 312, 338, 468, 507, 624, 676, 936, 1014, 1352, 1521, 1872, 2028, 2704, 3042, 3343, 4056, 6084, 6686, 8112, 10029, 12168, 13372, 20058, 24336, 26744, 30087, 40116, 43459, 53488, 60174, 80232, 86918, 120348, 130377, 160464, 173836, 240696, 260754, 347672, 391131, 481392, 521508, 564967, 695344, 782262, 1043016, 1129934, 1564524, 1694901, 2086032, 2259868, 3129048, 3389802, 4519736, 5084703, 6258096, 6779604, 9039472, 10169406, 13559208, 20338812, 27118416, 40677624, 81355248]

約数ペア:
[(1, 81355248), (2, 40677624), (3, 27118416), (4, 20338812), (6, 13559208), (8, 10169406), (9, 9039472), (12, 6779604), (13, 6258096), (16, 5084703), (18, 4519736), (24, 3389802), (26, 3129048), (36, 2259868), (39, 2086032), (48, 1694901), (52, 1564524), (72, 1129934), (78, 1043016), (104, 782262), (117, 695344), (144, 564967), (156, 521508), (169, 481392), (208, 391131), (234, 347672), (312, 260754), (338, 240696), (468, 173836), (507, 160464), (624, 130377), (676, 120348), (936, 86918), (1014, 80232), (1352, 60174), (1521, 53488), (1872, 43459), (2028, 40116), (2704, 30087), (3042, 26744), (3343, 24336), (4056, 20058), (6084, 13372), (6686, 12168), (8112, 10029)]

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