20504125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{9649}}^1$

素因数の和:9681

約数の個数: 16

約数和(自身を含む): 27097200

約数和(自身を除く): 6593075

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 9649, 48245, 164033, 241225, 820165, 1206125, 4100825, 20504125]

約数ペア:

[(1, 20504125), (5, 4100825), (17, 1206125), (25, 820165), (85, 241225), (125, 164033), (425, 48245), (2125, 9649)]