28388815

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1451}}^1$

素因数の和:1519

約数の個数: 32

約数和(自身を含む): 42932736

約数和(自身を除く): 14543921

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 215, 301, 455, 559, 1451, 1505, 2795, 3913, 7255, 10157, 18863, 19565, 50785, 62393, 94315, 132041, 311965, 436751, 660205, 811109, 2183755, 4055545, 5677763, 28388815]

約数ペア:

[(1, 28388815), (5, 5677763), (7, 4055545), (13, 2183755), (35, 811109), (43, 660205), (65, 436751), (91, 311965), (215, 132041), (301, 94315), (455, 62393), (559, 50785), (1451, 19565), (1505, 18863), (2795, 10157), (3913, 7255)]