80999595

素因数分解:

$3^4\times 5^1\times {\mathrm{199999}}^1$

素因数の和:200016

約数の個数: 20

約数和(自身を含む): 145200000

約数和(自身を除く): 64200405

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 199999, 599997, 999995, 1799991, 2999985, 5399973, 8999955, 16199919, 26999865, 80999595]

約数ペア:

[(1, 80999595), (3, 26999865), (5, 16199919), (9, 8999955), (15, 5399973), (27, 2999985), (45, 1799991), (81, 999995), (135, 599997), (405, 199999)]