180059905

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 228614400

約数和(自身を除く): 48554495

約数列:

[1, 5, 41, 71, 89, 139, 205, 355, 445, 695, 2911, 3649, 5699, 6319, 9869, 12371, 14555, 18245, 28495, 31595, 49345, 61855, 259079, 404629, 507211, 878341, 1295395, 2023145, 2536055, 4391705, 36011981, 180059905]

約数ペア:

[(1, 180059905), (5, 36011981), (41, 4391705), (71, 2536055), (89, 2023145), (139, 1295395), (205, 878341), (355, 507211), (445, 404629), (695, 259079), (2911, 61855), (3649, 49345), (5699, 31595), (6319, 28495), (9869, 18245), (12371, 14555)]