404577940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1556069}}^1$

素因数の和:1556091

約数の個数: 24

約数和(自身を含む): 914969160

約数和(自身を除く): 510391220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1556069, 3112138, 6224276, 7780345, 15560690, 20228897, 31121380, 40457794, 80915588, 101144485, 202288970, 404577940]

約数ペア:

[(1, 404577940), (2, 202288970), (4, 101144485), (5, 80915588), (10, 40457794), (13, 31121380), (20, 20228897), (26, 15560690), (52, 7780345), (65, 6224276), (130, 3112138), (260, 1556069)]