128492080

素因数分解:

$2^4\times 5^1\times {\mathrm{1606151}}^1$

素因数の和:1606164

約数の個数: 20

約数和(自身を含む): 298744272

約数和(自身を除く): 170252192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1606151, 3212302, 6424604, 8030755, 12849208, 16061510, 25698416, 32123020, 64246040, 128492080]

約数ペア:

[(1, 128492080), (2, 64246040), (4, 32123020), (5, 25698416), (8, 16061510), (10, 12849208), (16, 8030755), (20, 6424604), (40, 3212302), (80, 1606151)]