285385904

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{128321}}^1$

素因数の和:128468

約数の個数: 20

約数和(自身を含む): 556917480

約数和(自身を除く): 271531576

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 128321, 256642, 513284, 1026568, 2053136, 17836619, 35673238, 71346476, 142692952, 285385904]

約数ペア:

[(1, 285385904), (2, 142692952), (4, 71346476), (8, 35673238), (16, 17836619), (139, 2053136), (278, 1026568), (556, 513284), (1112, 256642), (2224, 128321)]