28745175

素因数分解:

$3^1\times 5^2\times {\mathrm{487}}^1\times {\mathrm{787}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 47683456

約数和(自身を除く): 18938281

約数列:

[1, 3, 5, 15, 25, 75, 487, 787, 1461, 2361, 2435, 3935, 7305, 11805, 12175, 19675, 36525, 59025, 383269, 1149807, 1916345, 5749035, 9581725, 28745175]

約数ペア:

[(1, 28745175), (3, 9581725), (5, 5749035), (15, 1916345), (25, 1149807), (75, 383269), (487, 59025), (787, 36525), (1461, 19675), (2361, 12175), (2435, 11805), (3935, 7305)]