19185725

素因数分解:

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

素因数の和:294

約数の個数: 36

約数和(自身を含む): 27230400

約数和(自身を除く): 8044675

約数列:

[1, 5, 13, 19, 25, 65, 95, 169, 239, 247, 325, 475, 845, 1195, 1235, 3107, 3211, 4225, 4541, 5975, 6175, 15535, 16055, 22705, 40391, 59033, 77675, 80275, 113525, 201955, 295165, 767429, 1009775, 1475825, 3837145, 19185725]

約数ペア:

[(1, 19185725), (5, 3837145), (13, 1475825), (19, 1009775), (25, 767429), (65, 295165), (95, 201955), (169, 113525), (239, 80275), (247, 77675), (325, 59033), (475, 40391), (845, 22705), (1195, 16055), (1235, 15535), (3107, 6175), (3211, 5975), (4225, 4541)]