18720648

素因数分解:

$2^3\times 3^2\times {\mathrm{260009}}^1$

素因数の和:260021

約数の個数: 24

約数和(自身を含む): 50701950

約数和(自身を除く): 31981302

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 260009, 520018, 780027, 1040036, 1560054, 2080072, 2340081, 3120108, 4680162, 6240216, 9360324, 18720648]

約数ペア:

[(1, 18720648), (2, 9360324), (3, 6240216), (4, 4680162), (6, 3120108), (8, 2340081), (9, 2080072), (12, 1560054), (18, 1040036), (24, 780027), (36, 520018), (72, 260009)]