81258215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{12101}}^1$

素因数の和:12202

約数の個数: 16

約数和(自身を含む): 104561280

約数和(自身を除く): 23303065

約数列:

[1, 5, 17, 79, 85, 395, 1343, 6715, 12101, 60505, 205717, 955979, 1028585, 4779895, 16251643, 81258215]

約数ペア:

[(1, 81258215), (5, 16251643), (17, 4779895), (79, 1028585), (85, 955979), (395, 205717), (1343, 60505), (6715, 12101)]