157303215

素因数分解:

$3^4\times 5^1\times {\mathrm{388403}}^1$

素因数の和:388420

約数の個数: 20

約数和(自身を含む): 281981304

約数和(自身を除く): 124678089

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 388403, 1165209, 1942015, 3495627, 5826045, 10486881, 17478135, 31460643, 52434405, 157303215]

約数ペア:

[(1, 157303215), (3, 52434405), (5, 31460643), (9, 17478135), (15, 10486881), (27, 5826045), (45, 3495627), (81, 1942015), (135, 1165209), (405, 388403)]