16193125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2026

約数の個数: 20

約数和(自身を含む): 21802396

約数和(自身を除く): 5609271

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 1993, 8125, 9965, 25909, 49825, 129545, 249125, 647725, 1245625, 3238625, 16193125]

約数ペア:

[(1, 16193125), (5, 3238625), (13, 1245625), (25, 647725), (65, 249125), (125, 129545), (325, 49825), (625, 25909), (1625, 9965), (1993, 8125)]