19895455

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 26123328

約数和(自身を除く): 6227873

約数列:

[1, 5, 37, 41, 43, 61, 185, 205, 215, 305, 1517, 1591, 1763, 2257, 2501, 2623, 7585, 7955, 8815, 11285, 12505, 13115, 65231, 92537, 97051, 107543, 326155, 462685, 485255, 537715, 3979091, 19895455]

約数ペア:

[(1, 19895455), (5, 3979091), (37, 537715), (41, 485255), (43, 462685), (61, 326155), (185, 107543), (205, 97051), (215, 92537), (305, 65231), (1517, 13115), (1591, 12505), (1763, 11285), (2257, 8815), (2501, 7955), (2623, 7585)]