20179681025

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{867011}}^1$

素因数の和:867054

約数の個数: 36

約数和(自身を含む): 30640204080

約数和(自身を除く): 10460523055

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 665, 931, 1225, 3325, 4655, 23275, 867011, 4335055, 6069077, 16473209, 21675275, 30345385, 42483539, 82366045, 115312463, 151726925, 212417695, 411830225, 576562315, 807187241, 1062088475, 2882811575, 4035936205, 20179681025]

約数ペア:

[(1, 20179681025), (5, 4035936205), (7, 2882811575), (19, 1062088475), (25, 807187241), (35, 576562315), (49, 411830225), (95, 212417695), (133, 151726925), (175, 115312463), (245, 82366045), (475, 42483539), (665, 30345385), (931, 21675275), (1225, 16473209), (3325, 6069077), (4655, 4335055), (23275, 867011)]