28871025

素因数分解:

$3^1\times 5^2\times {\mathrm{349}}^1\times {\mathrm{1103}}^1$

素因数の和:1465

約数の個数: 24

約数和(自身を含む): 47913600

約数和(自身を除く): 19042575

約数列:

[1, 3, 5, 15, 25, 75, 349, 1047, 1103, 1745, 3309, 5235, 5515, 8725, 16545, 26175, 27575, 82725, 384947, 1154841, 1924735, 5774205, 9623675, 28871025]

約数ペア:

[(1, 28871025), (3, 9623675), (5, 5774205), (15, 1924735), (25, 1154841), (75, 384947), (349, 82725), (1047, 27575), (1103, 26175), (1745, 16545), (3309, 8725), (5235, 5515)]