About the Number

813904

813903 ← → 813905

2進数表記:11000110101101010000

漢数字表記:八十一万三千九百四

素因数分解:

2 4 × 7 1 × 13 2 × 43 1

素因数の和:84
約数の個数: 60
約数和(自身を含む): 1996896
約数和(自身を除く): 1182992

約数列:
[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 52, 56, 86, 91, 104, 112, 169, 172, 182, 208, 301, 338, 344, 364, 559, 602, 676, 688, 728, 1118, 1183, 1204, 1352, 1456, 2236, 2366, 2408, 2704, 3913, 4472, 4732, 4816, 7267, 7826, 8944, 9464, 14534, 15652, 18928, 29068, 31304, 50869, 58136, 62608, 101738, 116272, 203476, 406952, 813904]

約数ペア:
[(1, 813904), (2, 406952), (4, 203476), (7, 116272), (8, 101738), (13, 62608), (14, 58136), (16, 50869), (26, 31304), (28, 29068), (43, 18928), (52, 15652), (56, 14534), (86, 9464), (91, 8944), (104, 7826), (112, 7267), (169, 4816), (172, 4732), (182, 4472), (208, 3913), (301, 2704), (338, 2408), (344, 2366), (364, 2236), (559, 1456), (602, 1352), (676, 1204), (688, 1183), (728, 1118)]

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