278889125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{117427}}^1$

素因数の和:117461

約数の個数: 16

約数和(自身を含む): 366375360

約数和(自身を除く): 87486235

約数列:

[1, 5, 19, 25, 95, 125, 475, 2375, 117427, 587135, 2231113, 2935675, 11155565, 14678375, 55777825, 278889125]

約数ペア:

[(1, 278889125), (5, 55777825), (19, 14678375), (25, 11155565), (95, 2935675), (125, 2231113), (475, 587135), (2375, 117427)]