2560625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:278

約数の個数: 20

約数和(自身を含む): 3402036

約数和(自身を除く): 841411

約数列:

[1, 5, 17, 25, 85, 125, 241, 425, 625, 1205, 2125, 4097, 6025, 10625, 20485, 30125, 102425, 150625, 512125, 2560625]

約数ペア:

[(1, 2560625), (5, 512125), (17, 150625), (25, 102425), (85, 30125), (125, 20485), (241, 10625), (425, 6025), (625, 4097), (1205, 2125)]