28205025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{19793}}^1$

素因数の和:19825

約数の個数: 24

約数和(自身を含む): 49089120

約数和(自身を除く): 20884095

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 19793, 59379, 98965, 296895, 376067, 494825, 1128201, 1484475, 1880335, 5641005, 9401675, 28205025]

約数ペア:

[(1, 28205025), (3, 9401675), (5, 5641005), (15, 1880335), (19, 1484475), (25, 1128201), (57, 494825), (75, 376067), (95, 296895), (285, 98965), (475, 59379), (1425, 19793)]