About the Number

12855856

12855855 ← → 12855857

2進数表記:110001000010101000110000

漢数字表記:千二百八十五万五千八百五十六

素因数分解:

2 4 × 13 1 × 19 1 × 3253 1

素因数の和:3293
約数の個数: 40
約数和(自身を含む): 28244720
約数和(自身を除く): 15388864

約数列:
[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3253, 3952, 6506, 13012, 26024, 42289, 52048, 61807, 84578, 123614, 169156, 247228, 338312, 494456, 676624, 803491, 988912, 1606982, 3213964, 6427928, 12855856]

約数ペア:
[(1, 12855856), (2, 6427928), (4, 3213964), (8, 1606982), (13, 988912), (16, 803491), (19, 676624), (26, 494456), (38, 338312), (52, 247228), (76, 169156), (104, 123614), (152, 84578), (208, 61807), (247, 52048), (304, 42289), (494, 26024), (988, 13012), (1976, 6506), (3253, 3952)]

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