20076784

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13789}}^1$

素因数の和:13817

約数の個数: 40

約数和(自身を含む): 47878880

約数和(自身を除く): 27802096

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13789, 27578, 55156, 96523, 110312, 179257, 193046, 220624, 358514, 386092, 717028, 772184, 1254799, 1434056, 1544368, 2509598, 2868112, 5019196, 10038392, 20076784]

約数ペア:

[(1, 20076784), (2, 10038392), (4, 5019196), (7, 2868112), (8, 2509598), (13, 1544368), (14, 1434056), (16, 1254799), (26, 772184), (28, 717028), (52, 386092), (56, 358514), (91, 220624), (104, 193046), (112, 179257), (182, 110312), (208, 96523), (364, 55156), (728, 27578), (1456, 13789)]