About the Number

12988140

12988139 ← → 12988141

2進数表記:110001100010111011101100

漢数字表記:千二百九十八万八千百四十

素因数分解:

2 2 × 3 1 × 5 1 × 11 2 × 1789 1

素因数の和:1823
約数の個数: 72
約数和(自身を含む): 39995760
約数和(自身を除く): 27007620

約数列:
[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1789, 1815, 2420, 3578, 3630, 5367, 7156, 7260, 8945, 10734, 17890, 19679, 21468, 26835, 35780, 39358, 53670, 59037, 78716, 98395, 107340, 118074, 196790, 216469, 236148, 295185, 393580, 432938, 590370, 649407, 865876, 1082345, 1180740, 1298814, 2164690, 2597628, 3247035, 4329380, 6494070, 12988140]

約数ペア:
[(1, 12988140), (2, 6494070), (3, 4329380), (4, 3247035), (5, 2597628), (6, 2164690), (10, 1298814), (11, 1180740), (12, 1082345), (15, 865876), (20, 649407), (22, 590370), (30, 432938), (33, 393580), (44, 295185), (55, 236148), (60, 216469), (66, 196790), (110, 118074), (121, 107340), (132, 98395), (165, 78716), (220, 59037), (242, 53670), (330, 39358), (363, 35780), (484, 26835), (605, 21468), (660, 19679), (726, 17890), (1210, 10734), (1452, 8945), (1789, 7260), (1815, 7156), (2420, 5367), (3578, 3630)]

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