642743505

素因数分解:

$3^5\times 5^1\times {\mathrm{529007}}^1$

素因数の和:529027

約数の個数: 24

約数和(自身を含む): 1155353472

約数和(自身を除く): 512609967

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 529007, 1587021, 2645035, 4761063, 7935105, 14283189, 23805315, 42849567, 71415945, 128548701, 214247835, 642743505]

約数ペア:

[(1, 642743505), (3, 214247835), (5, 128548701), (9, 71415945), (15, 42849567), (27, 23805315), (45, 14283189), (81, 7935105), (135, 4761063), (243, 2645035), (405, 1587021), (1215, 529007)]