916825

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:74

約数の個数: 36

約数和(自身を含む): 1452288

約数和(自身を除く): 535463

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 91, 155, 169, 175, 217, 325, 403, 455, 775, 845, 1085, 1183, 2015, 2275, 2821, 4225, 5239, 5425, 5915, 10075, 14105, 26195, 29575, 36673, 70525, 130975, 183365, 916825]

約数ペア:

[(1, 916825), (5, 183365), (7, 130975), (13, 70525), (25, 36673), (31, 29575), (35, 26195), (65, 14105), (91, 10075), (155, 5915), (169, 5425), (175, 5239), (217, 4225), (325, 2821), (403, 2275), (455, 2015), (775, 1183), (845, 1085)]