18203690

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25639}}^1$

素因数の和:25717

約数の個数: 16

約数和(自身を含む): 33229440

約数和(自身を除く): 15025750

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 25639, 51278, 128195, 256390, 1820369, 3640738, 9101845, 18203690]

約数ペア:

[(1, 18203690), (2, 9101845), (5, 3640738), (10, 1820369), (71, 256390), (142, 128195), (355, 51278), (710, 25639)]