28040675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{239}}^1$

素因数の和:300

約数の個数: 36

約数和(自身を含む): 39684960

約数和(自身を除く): 11644285

約数列:

[1, 5, 13, 19, 25, 65, 95, 239, 247, 325, 361, 475, 1195, 1235, 1805, 3107, 4541, 4693, 5975, 6175, 9025, 15535, 22705, 23465, 59033, 77675, 86279, 113525, 117325, 295165, 431395, 1121627, 1475825, 2156975, 5608135, 28040675]

約数ペア:

[(1, 28040675), (5, 5608135), (13, 2156975), (19, 1475825), (25, 1121627), (65, 431395), (95, 295165), (239, 117325), (247, 113525), (325, 86279), (361, 77675), (475, 59033), (1195, 23465), (1235, 22705), (1805, 15535), (3107, 9025), (4541, 6175), (4693, 5975)]