28376025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{19913}}^1$

素因数の和:19945

約数の個数: 24

約数和(自身を含む): 49386720

約数和(自身を除く): 21010695

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 19913, 59739, 99565, 298695, 378347, 497825, 1135041, 1493475, 1891735, 5675205, 9458675, 28376025]

約数ペア:

[(1, 28376025), (3, 9458675), (5, 5675205), (15, 1891735), (19, 1493475), (25, 1135041), (57, 497825), (75, 378347), (95, 298695), (285, 99565), (475, 59739), (1425, 19913)]