28389335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 38588928

約数和(自身を除く): 10199593

約数列:

[1, 5, 13, 31, 65, 73, 155, 193, 365, 403, 949, 965, 2015, 2263, 2509, 4745, 5983, 11315, 12545, 14089, 29419, 29915, 70445, 77779, 147095, 183157, 388895, 436759, 915785, 2183795, 5677867, 28389335]

約数ペア:

[(1, 28389335), (5, 5677867), (13, 2183795), (31, 915785), (65, 436759), (73, 388895), (155, 183157), (193, 147095), (365, 77779), (403, 70445), (949, 29915), (965, 29419), (2015, 14089), (2263, 12545), (2509, 11315), (4745, 5983)]