20329465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 7249415

約数列:

[1, 5, 13, 37, 65, 79, 107, 185, 395, 481, 535, 1027, 1391, 2405, 2923, 3959, 5135, 6955, 8453, 14615, 19795, 37999, 42265, 51467, 109889, 189995, 257335, 312761, 549445, 1563805, 4065893, 20329465]

約数ペア:

[(1, 20329465), (5, 4065893), (13, 1563805), (37, 549445), (65, 312761), (79, 257335), (107, 189995), (185, 109889), (395, 51467), (481, 42265), (535, 37999), (1027, 19795), (1391, 14615), (2405, 8453), (2923, 6955), (3959, 5135)]