2738125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{337}}^1$

素因数の和:370

約数の個数: 20

約数和(自身を含む): 3695692

約数和(自身を除く): 957567

約数列:

[1, 5, 13, 25, 65, 125, 325, 337, 625, 1625, 1685, 4381, 8125, 8425, 21905, 42125, 109525, 210625, 547625, 2738125]

約数ペア:

[(1, 2738125), (5, 547625), (13, 210625), (25, 109525), (65, 42125), (125, 21905), (325, 8425), (337, 8125), (625, 4381), (1625, 1685)]