20178943370

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28421047}}^1$

素因数の和:28421125

約数の個数: 16

約数和(自身を含む): 36833678208

約数和(自身を除く): 16654734838

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28421047, 56842094, 142105235, 284210470, 2017894337, 4035788674, 10089471685, 20178943370]

約数ペア:

[(1, 20178943370), (2, 10089471685), (5, 4035788674), (10, 2017894337), (71, 284210470), (142, 142105235), (355, 56842094), (710, 28421047)]