243399475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{719}}^1\times {\mathrm{1231}}^1$

素因数の和:1971

約数の個数: 24

約数和(自身を含む): 329978880

約数和(自身を除く): 86579405

約数列:

[1, 5, 11, 25, 55, 275, 719, 1231, 3595, 6155, 7909, 13541, 17975, 30775, 39545, 67705, 197725, 338525, 885089, 4425445, 9735979, 22127225, 48679895, 243399475]

約数ペア:

[(1, 243399475), (5, 48679895), (11, 22127225), (25, 9735979), (55, 4425445), (275, 885089), (719, 338525), (1231, 197725), (3595, 67705), (6155, 39545), (7909, 30775), (13541, 17975)]