51981455

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{1301}}^1$

素因数の和:1498

約数の個数: 16

約数和(自身を含む): 63933408

約数和(自身を除く): 11951953

約数列:

[1, 5, 61, 131, 305, 655, 1301, 6505, 7991, 39955, 79361, 170431, 396805, 852155, 10396291, 51981455]

約数ペア:

[(1, 51981455), (5, 10396291), (61, 852155), (131, 396805), (305, 170431), (655, 79361), (1301, 39955), (6505, 7991)]