81398030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{3739}}^1$

素因数の和:4064

約数の個数: 32

約数和(自身を含む): 168030720

約数和(自身を除く): 86632690

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 311, 622, 1555, 2177, 3110, 3739, 4354, 7478, 10885, 18695, 21770, 26173, 37390, 52346, 130865, 261730, 1162829, 2325658, 5814145, 8139803, 11628290, 16279606, 40699015, 81398030]

約数ペア:

[(1, 81398030), (2, 40699015), (5, 16279606), (7, 11628290), (10, 8139803), (14, 5814145), (35, 2325658), (70, 1162829), (311, 261730), (622, 130865), (1555, 52346), (2177, 37390), (3110, 26173), (3739, 21770), (4354, 18695), (7478, 10885)]