25990055

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^2$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 38546592

約数和(自身を除く): 12556537

約数列:

[1, 5, 7, 13, 35, 65, 91, 239, 455, 1195, 1673, 3107, 8365, 15535, 21749, 57121, 108745, 285605, 399847, 742573, 1999235, 3712865, 5198011, 25990055]

約数ペア:

[(1, 25990055), (5, 5198011), (7, 3712865), (13, 1999235), (35, 742573), (65, 399847), (91, 285605), (239, 108745), (455, 57121), (1195, 21749), (1673, 15535), (3107, 8365)]