427700780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1645003}}^1$

素因数の和:1645025

約数の個数: 24

約数和(自身を含む): 967262352

約数和(自身を除く): 539561572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1645003, 3290006, 6580012, 8225015, 16450030, 21385039, 32900060, 42770078, 85540156, 106925195, 213850390, 427700780]

約数ペア:

[(1, 427700780), (2, 213850390), (4, 106925195), (5, 85540156), (10, 42770078), (13, 32900060), (20, 21385039), (26, 16450030), (52, 8225015), (65, 6580012), (130, 3290006), (260, 1645003)]