257021868

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{690919}}^1$

素因数の和:690957

約数の個数: 24

約数和(自身を含む): 619064320

約数和(自身を除く): 362042452

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 372, 690919, 1381838, 2072757, 2763676, 4145514, 8291028, 21418489, 42836978, 64255467, 85673956, 128510934, 257021868]

約数ペア:

[(1, 257021868), (2, 128510934), (3, 85673956), (4, 64255467), (6, 42836978), (12, 21418489), (31, 8291028), (62, 4145514), (93, 2763676), (124, 2072757), (186, 1381838), (372, 690919)]