About the Number

31128870

31128869 ← → 31128871

2進数表記:1110110101111110100100110

漢数字表記:三千百十二万八千八百七十

素因数分解:

2 1 × 3 1 × 5 1 × 17 1 × 67 1 × 911 1

素因数の和:1005
約数の個数: 64
約数和(自身を含む): 80372736
約数和(自身を除く): 49243866

約数列:
[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 67, 85, 102, 134, 170, 201, 255, 335, 402, 510, 670, 911, 1005, 1139, 1822, 2010, 2278, 2733, 3417, 4555, 5466, 5695, 6834, 9110, 11390, 13665, 15487, 17085, 27330, 30974, 34170, 46461, 61037, 77435, 92922, 122074, 154870, 183111, 232305, 305185, 366222, 464610, 610370, 915555, 1037629, 1831110, 2075258, 3112887, 5188145, 6225774, 10376290, 15564435, 31128870]

約数ペア:
[(1, 31128870), (2, 15564435), (3, 10376290), (5, 6225774), (6, 5188145), (10, 3112887), (15, 2075258), (17, 1831110), (30, 1037629), (34, 915555), (51, 610370), (67, 464610), (85, 366222), (102, 305185), (134, 232305), (170, 183111), (201, 154870), (255, 122074), (335, 92922), (402, 77435), (510, 61037), (670, 46461), (911, 34170), (1005, 30974), (1139, 27330), (1822, 17085), (2010, 15487), (2278, 13665), (2733, 11390), (3417, 9110), (4555, 6834), (5466, 5695)]

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