20178267505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{275227}}^1$

素因数の和:275317

約数の個数: 32

約数和(自身を含む): 27901513728

約数和(自身を除く): 7723246223

約数列:

[1, 5, 11, 31, 43, 55, 155, 215, 341, 473, 1333, 1705, 2365, 6665, 14663, 73315, 275227, 1376135, 3027497, 8532037, 11834761, 15137485, 42660185, 59173805, 93852407, 130182371, 366877591, 469262035, 650911855, 1834387955, 4035653501, 20178267505]

約数ペア:

[(1, 20178267505), (5, 4035653501), (11, 1834387955), (31, 650911855), (43, 469262035), (55, 366877591), (155, 130182371), (215, 93852407), (341, 59173805), (473, 42660185), (1333, 15137485), (1705, 11834761), (2365, 8532037), (6665, 3027497), (14663, 1376135), (73315, 275227)]