20628496

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2749}}^1$

素因数の和:2831

約数の個数: 40

約数和(自身を含む): 46376000

約数和(自身を除く): 25747504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 112, 134, 268, 469, 536, 938, 1072, 1876, 2749, 3752, 5498, 7504, 10996, 19243, 21992, 38486, 43984, 76972, 153944, 184183, 307888, 368366, 736732, 1289281, 1473464, 2578562, 2946928, 5157124, 10314248, 20628496]

約数ペア:

[(1, 20628496), (2, 10314248), (4, 5157124), (7, 2946928), (8, 2578562), (14, 1473464), (16, 1289281), (28, 736732), (56, 368366), (67, 307888), (112, 184183), (134, 153944), (268, 76972), (469, 43984), (536, 38486), (938, 21992), (1072, 19243), (1876, 10996), (2749, 7504), (3752, 5498)]