843125

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 20

約数和(自身を含む): 1124640

約数和(自身を除く): 281515

約数列:

[1, 5, 19, 25, 71, 95, 125, 355, 475, 625, 1349, 1775, 2375, 6745, 8875, 11875, 33725, 44375, 168625, 843125]

約数ペア:

[(1, 843125), (5, 168625), (19, 44375), (25, 33725), (71, 11875), (95, 8875), (125, 6745), (355, 2375), (475, 1775), (625, 1349)]