20514804

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{311}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 29804556

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 239, 276, 311, 478, 622, 717, 933, 956, 1244, 1434, 1866, 2868, 3732, 5497, 7153, 10994, 14306, 16491, 21459, 21988, 28612, 32982, 42918, 65964, 74329, 85836, 148658, 222987, 297316, 445974, 891948, 1709567, 3419134, 5128701, 6838268, 10257402, 20514804]

約数ペア:

[(1, 20514804), (2, 10257402), (3, 6838268), (4, 5128701), (6, 3419134), (12, 1709567), (23, 891948), (46, 445974), (69, 297316), (92, 222987), (138, 148658), (239, 85836), (276, 74329), (311, 65964), (478, 42918), (622, 32982), (717, 28612), (933, 21988), (956, 21459), (1244, 16491), (1434, 14306), (1866, 10994), (2868, 7153), (3732, 5497)]