80691640

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{4357}}^1$

素因数の和:4831

約数の個数: 32

約数和(自身を含む): 181990080

約数和(自身を除く): 101298440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1852, 2315, 3704, 4357, 4630, 8714, 9260, 17428, 18520, 21785, 34856, 43570, 87140, 174280, 2017291, 4034582, 8069164, 10086455, 16138328, 20172910, 40345820, 80691640]

約数ペア:

[(1, 80691640), (2, 40345820), (4, 20172910), (5, 16138328), (8, 10086455), (10, 8069164), (20, 4034582), (40, 2017291), (463, 174280), (926, 87140), (1852, 43570), (2315, 34856), (3704, 21785), (4357, 18520), (4630, 17428), (8714, 9260)]