821140255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{3301}}^1$

素因数の和:3451

約数の個数: 32

約数和(自身を含む): 1098377280

約数和(自身を除く): 277237025

約数列:

[1, 5, 13, 43, 65, 89, 215, 445, 559, 1157, 2795, 3301, 3827, 5785, 16505, 19135, 42913, 49751, 141943, 214565, 248755, 293789, 709715, 1468945, 1845259, 3819257, 9226295, 12632927, 19096285, 63164635, 164228051, 821140255]

約数ペア:

[(1, 821140255), (5, 164228051), (13, 63164635), (43, 19096285), (65, 12632927), (89, 9226295), (215, 3819257), (445, 1845259), (559, 1468945), (1157, 709715), (2795, 293789), (3301, 248755), (3827, 214565), (5785, 141943), (16505, 49751), (19135, 42913)]