17960019820

素因数分解:

$2^2\times 5^1\times {\mathrm{898000991}}^1$

素因数の和:898001000

約数の個数: 12

約数和(自身を含む): 37716041664

約数和(自身を除く): 19756021844

約数列:

[1, 2, 4, 5, 10, 20, 898000991, 1796001982, 3592003964, 4490004955, 8980009910, 17960019820]

約数ペア:

[(1, 17960019820), (2, 8980009910), (4, 4490004955), (5, 3592003964), (10, 1796001982), (20, 898000991)]