205659220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{790997}}^1$

素因数の和:791019

約数の個数: 24

約数和(自身を含む): 465106824

約数和(自身を除く): 259447604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 790997, 1581994, 3163988, 3954985, 7909970, 10282961, 15819940, 20565922, 41131844, 51414805, 102829610, 205659220]

約数ペア:

[(1, 205659220), (2, 102829610), (4, 51414805), (5, 41131844), (10, 20565922), (13, 15819940), (20, 10282961), (26, 7909970), (52, 3954985), (65, 3163988), (130, 1581994), (260, 790997)]