28861725

素因数分解:

$3^1\times 5^2\times {\mathrm{347}}^1\times {\mathrm{1109}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 47898720

約数和(自身を除く): 19036995

約数列:

[1, 3, 5, 15, 25, 75, 347, 1041, 1109, 1735, 3327, 5205, 5545, 8675, 16635, 26025, 27725, 83175, 384823, 1154469, 1924115, 5772345, 9620575, 28861725]

約数ペア:

[(1, 28861725), (3, 9620575), (5, 5772345), (15, 1924115), (25, 1154469), (75, 384823), (347, 83175), (1041, 27725), (1109, 26025), (1735, 16635), (3327, 8675), (5205, 5545)]