987245

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:500

約数の個数: 16

約数和(自身を含む): 1377408

約数和(自身を除く): 390163

約数列:

[1, 5, 7, 35, 67, 335, 421, 469, 2105, 2345, 2947, 14735, 28207, 141035, 197449, 987245]

約数ペア:

[(1, 987245), (5, 197449), (7, 141035), (35, 28207), (67, 14735), (335, 2947), (421, 2345), (469, 2105)]