1813125

素因数分解:

$3^1\times 5^4\times {\mathrm{967}}^1$

素因数の和:990

約数の個数: 20

約数和(自身を含む): 3024032

約数和(自身を除く): 1210907

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 967, 1875, 2901, 4835, 14505, 24175, 72525, 120875, 362625, 604375, 1813125]

約数ペア:

[(1, 1813125), (3, 604375), (5, 362625), (15, 120875), (25, 72525), (75, 24175), (125, 14505), (375, 4835), (625, 2901), (967, 1875)]