18720048

素因数分解:

$2^4\times 3^1\times {\mathrm{390001}}^1$

素因数の和:390012

約数の個数: 20

約数和(自身を含む): 48360248

約数和(自身を除く): 29640200

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 390001, 780002, 1170003, 1560004, 2340006, 3120008, 4680012, 6240016, 9360024, 18720048]

約数ペア:

[(1, 18720048), (2, 9360024), (3, 6240016), (4, 4680012), (6, 3120008), (8, 2340006), (12, 1560004), (16, 1170003), (24, 780002), (48, 390001)]