82664080

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1607}}^1$

素因数の和:2263

約数の個数: 40

約数和(自身を含む): 192612672

約数和(自身を除く): 109948592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1286, 1607, 2572, 3214, 3215, 5144, 6428, 6430, 8035, 10288, 12856, 12860, 16070, 25712, 25720, 32140, 51440, 64280, 128560, 1033301, 2066602, 4133204, 5166505, 8266408, 10333010, 16532816, 20666020, 41332040, 82664080]

約数ペア:

[(1, 82664080), (2, 41332040), (4, 20666020), (5, 16532816), (8, 10333010), (10, 8266408), (16, 5166505), (20, 4133204), (40, 2066602), (80, 1033301), (643, 128560), (1286, 64280), (1607, 51440), (2572, 32140), (3214, 25720), (3215, 25712), (5144, 16070), (6428, 12860), (6430, 12856), (8035, 10288)]