20090525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8831}}^1$

素因数の和:8861

約数の個数: 24

約数和(自身を含む): 30664704

約数和(自身を除く): 10574179

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 8831, 44155, 61817, 114803, 220775, 309085, 574015, 803621, 1545425, 2870075, 4018105, 20090525]

約数ペア:

[(1, 20090525), (5, 4018105), (7, 2870075), (13, 1545425), (25, 803621), (35, 574015), (65, 309085), (91, 220775), (175, 114803), (325, 61817), (455, 44155), (2275, 8831)]