About the Number

3181030985

3181030984 ← → 3181030986

2進数表記:10111101100110101010111001001001

漢数字表記:三十一億八千百三万九百八十五

素因数分解:

5 1 × 11 1 × 23 1 × 79 1 × 139 1 × 229 1

素因数の和:486
約数の個数: 64
約数和(自身を含む): 4451328000
約数和(自身を除く): 1270297015

約数列:
[1, 5, 11, 23, 55, 79, 115, 139, 229, 253, 395, 695, 869, 1145, 1265, 1529, 1817, 2519, 3197, 4345, 5267, 7645, 9085, 10981, 12595, 15985, 18091, 19987, 26335, 31831, 35167, 54905, 57937, 90455, 99935, 120791, 159155, 175835, 199001, 252563, 289685, 350141, 416093, 603955, 732113, 995005, 1262815, 1750705, 2080465, 2514649, 2778193, 3660565, 4577023, 8053243, 12573245, 13890965, 22885115, 27661139, 40266215, 57836927, 138305695, 289184635, 636206197, 3181030985]

約数ペア:
[(1, 3181030985), (5, 636206197), (11, 289184635), (23, 138305695), (55, 57836927), (79, 40266215), (115, 27661139), (139, 22885115), (229, 13890965), (253, 12573245), (395, 8053243), (695, 4577023), (869, 3660565), (1145, 2778193), (1265, 2514649), (1529, 2080465), (1817, 1750705), (2519, 1262815), (3197, 995005), (4345, 732113), (5267, 603955), (7645, 416093), (9085, 350141), (10981, 289685), (12595, 252563), (15985, 199001), (18091, 175835), (19987, 159155), (26335, 120791), (31831, 99935), (35167, 90455), (54905, 57937)]

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