66431825

素因数分解:

$5^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 84648600

約数和(自身を除く): 18216775

約数列:

[1, 5, 25, 73, 89, 365, 409, 445, 1825, 2045, 2225, 6497, 10225, 29857, 32485, 36401, 149285, 162425, 182005, 746425, 910025, 2657273, 13286365, 66431825]

約数ペア:

[(1, 66431825), (5, 13286365), (25, 2657273), (73, 910025), (89, 746425), (365, 182005), (409, 162425), (445, 149285), (1825, 36401), (2045, 32485), (2225, 29857), (6497, 10225)]