1858125

素因数分解:

$3^1\times 5^4\times {\mathrm{991}}^1$

素因数の和:1014

約数の個数: 20

約数和(自身を含む): 3099008

約数和(自身を除く): 1240883

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 991, 1875, 2973, 4955, 14865, 24775, 74325, 123875, 371625, 619375, 1858125]

約数ペア:

[(1, 1858125), (3, 619375), (5, 371625), (15, 123875), (25, 74325), (75, 24775), (125, 14865), (375, 4955), (625, 2973), (991, 1875)]