2819725

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 18

約数和(自身を含む): 3638346

約数和(自身を除く): 818621

約数列:

[1, 5, 25, 43, 61, 215, 305, 1075, 1525, 1849, 2623, 9245, 13115, 46225, 65575, 112789, 563945, 2819725]

約数ペア:

[(1, 2819725), (5, 563945), (25, 112789), (43, 65575), (61, 46225), (215, 13115), (305, 9245), (1075, 2623), (1525, 1849)]