720439085

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 903450240

約数和(自身を除く): 183011155

約数列:

[1, 5, 41, 131, 139, 193, 205, 655, 695, 965, 5371, 5699, 7913, 18209, 25283, 26827, 26855, 28495, 39565, 91045, 126415, 134135, 746569, 1036603, 1099907, 3514337, 3732845, 5183015, 5499535, 17571685, 144087817, 720439085]

約数ペア:

[(1, 720439085), (5, 144087817), (41, 17571685), (131, 5499535), (139, 5183015), (193, 3732845), (205, 3514337), (655, 1099907), (695, 1036603), (965, 746569), (5371, 134135), (5699, 126415), (7913, 91045), (18209, 39565), (25283, 28495), (26827, 26855)]