About the Number

81989388

81989387 ← → 81989389

2進数表記:100111000110000111100001100

漢数字表記:八千百九十八万九千三百八十八

素因数分解:

2 2 × 3 3 × 13 1 × 23 1 × 2539 1

素因数の和:2588
約数の個数: 96
約数和(自身を含む): 238963200
約数和(自身を除く): 156973812

約数列:
[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 27, 36, 39, 46, 52, 54, 69, 78, 92, 108, 117, 138, 156, 207, 234, 276, 299, 351, 414, 468, 598, 621, 702, 828, 897, 1196, 1242, 1404, 1794, 2484, 2539, 2691, 3588, 5078, 5382, 7617, 8073, 10156, 10764, 15234, 16146, 22851, 30468, 32292, 33007, 45702, 58397, 66014, 68553, 91404, 99021, 116794, 132028, 137106, 175191, 198042, 233588, 274212, 297063, 350382, 396084, 525573, 594126, 700764, 759161, 891189, 1051146, 1188252, 1518322, 1576719, 1782378, 2102292, 2277483, 3036644, 3153438, 3564756, 4554966, 6306876, 6832449, 9109932, 13664898, 20497347, 27329796, 40994694, 81989388]

約数ペア:
[(1, 81989388), (2, 40994694), (3, 27329796), (4, 20497347), (6, 13664898), (9, 9109932), (12, 6832449), (13, 6306876), (18, 4554966), (23, 3564756), (26, 3153438), (27, 3036644), (36, 2277483), (39, 2102292), (46, 1782378), (52, 1576719), (54, 1518322), (69, 1188252), (78, 1051146), (92, 891189), (108, 759161), (117, 700764), (138, 594126), (156, 525573), (207, 396084), (234, 350382), (276, 297063), (299, 274212), (351, 233588), (414, 198042), (468, 175191), (598, 137106), (621, 132028), (702, 116794), (828, 99021), (897, 91404), (1196, 68553), (1242, 66014), (1404, 58397), (1794, 45702), (2484, 33007), (2539, 32292), (2691, 30468), (3588, 22851), (5078, 16146), (5382, 15234), (7617, 10764), (8073, 10156)]

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