261008255

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 337696128

約数和(自身を除く): 76687873

約数列:

[1, 5, 23, 41, 115, 197, 205, 281, 943, 985, 1405, 4531, 4715, 6463, 8077, 11521, 22655, 32315, 40385, 55357, 57605, 185771, 264983, 276785, 928855, 1273211, 1324915, 2269637, 6366055, 11348185, 52201651, 261008255]

約数ペア:

[(1, 261008255), (5, 52201651), (23, 11348185), (41, 6366055), (115, 2269637), (197, 1324915), (205, 1273211), (281, 928855), (943, 276785), (985, 264983), (1405, 185771), (4531, 57605), (4715, 55357), (6463, 40385), (8077, 32315), (11521, 22655)]