260015987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 331776000

約数和(自身を除く): 71760013

約数列:

[1, 7, 11, 71, 77, 199, 239, 497, 781, 1393, 1673, 2189, 2629, 5467, 14129, 15323, 16969, 18403, 47561, 98903, 118783, 155419, 186659, 332927, 523171, 1087933, 1306613, 3376831, 3662197, 23637817, 37145141, 260015987]

約数ペア:

[(1, 260015987), (7, 37145141), (11, 23637817), (71, 3662197), (77, 3376831), (199, 1306613), (239, 1087933), (497, 523171), (781, 332927), (1393, 186659), (1673, 155419), (2189, 118783), (2629, 98903), (5467, 47561), (14129, 18403), (15323, 16969)]