18673825

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 24552000

約数和(自身を除く): 5878175

約数列:

[1, 5, 25, 29, 43, 145, 215, 599, 725, 1075, 1247, 2995, 6235, 14975, 17371, 25757, 31175, 86855, 128785, 434275, 643925, 746953, 3734765, 18673825]

約数ペア:

[(1, 18673825), (5, 3734765), (25, 746953), (29, 643925), (43, 434275), (145, 128785), (215, 86855), (599, 31175), (725, 25757), (1075, 17371), (1247, 14975), (2995, 6235)]