18477940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71069}}^1$

素因数の和:71091

約数の個数: 24

約数和(自身を含む): 41789160

約数和(自身を除く): 23311220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71069, 142138, 284276, 355345, 710690, 923897, 1421380, 1847794, 3695588, 4619485, 9238970, 18477940]

約数ペア:

[(1, 18477940), (2, 9238970), (4, 4619485), (5, 3695588), (10, 1847794), (13, 1421380), (20, 923897), (26, 710690), (52, 355345), (65, 284276), (130, 142138), (260, 71069)]