64308725

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:558

約数の個数: 36

約数和(自身を含む): 89315712

約数和(自身を除く): 25006987

約数列:

[1, 5, 13, 25, 31, 65, 155, 169, 325, 403, 491, 775, 845, 2015, 2455, 4225, 5239, 6383, 10075, 12275, 15221, 26195, 31915, 76105, 82979, 130975, 159575, 197873, 380525, 414895, 989365, 2074475, 2572349, 4946825, 12861745, 64308725]

約数ペア:

[(1, 64308725), (5, 12861745), (13, 4946825), (25, 2572349), (31, 2074475), (65, 989365), (155, 414895), (169, 380525), (325, 197873), (403, 159575), (491, 130975), (775, 82979), (845, 76105), (2015, 31915), (2455, 26195), (4225, 15221), (5239, 12275), (6383, 10075)]