28148025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{19753}}^1$

素因数の和:19785

約数の個数: 24

約数和(自身を含む): 48989920

約数和(自身を除く): 20841895

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 19753, 59259, 98765, 296295, 375307, 493825, 1125921, 1481475, 1876535, 5629605, 9382675, 28148025]

約数ペア:

[(1, 28148025), (3, 9382675), (5, 5629605), (15, 1876535), (19, 1481475), (25, 1125921), (57, 493825), (75, 375307), (95, 296295), (285, 98765), (475, 59259), (1425, 19753)]