80990055

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25349}}^1$

素因数の和:25431

約数の個数: 24

約数和(自身を含む): 142365600

約数和(自身を除く): 61375545

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 25349, 76047, 126745, 228141, 380235, 1140705, 1799779, 5399337, 8998895, 16198011, 26996685, 80990055]

約数ペア:

[(1, 80990055), (3, 26996685), (5, 16198011), (9, 8998895), (15, 5399337), (45, 1799779), (71, 1140705), (213, 380235), (355, 228141), (639, 126745), (1065, 76047), (3195, 25349)]