66306160

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1289}}^1$

素因数の和:1945

約数の個数: 40

約数和(自身を含む): 154521360

約数和(自身を除く): 88215200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1286, 1289, 2572, 2578, 3215, 5144, 5156, 6430, 6445, 10288, 10312, 12860, 12890, 20624, 25720, 25780, 51440, 51560, 103120, 828827, 1657654, 3315308, 4144135, 6630616, 8288270, 13261232, 16576540, 33153080, 66306160]

約数ペア:

[(1, 66306160), (2, 33153080), (4, 16576540), (5, 13261232), (8, 8288270), (10, 6630616), (16, 4144135), (20, 3315308), (40, 1657654), (80, 828827), (643, 103120), (1286, 51560), (1289, 51440), (2572, 25780), (2578, 25720), (3215, 20624), (5144, 12890), (5156, 12860), (6430, 10312), (6445, 10288)]