27781225

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{601}}^1$

素因数の和:697

約数の個数: 18

約数和(自身を含む): 35327166

約数和(自身を除く): 7545941

約数列:

[1, 5, 25, 43, 215, 601, 1075, 1849, 3005, 9245, 15025, 25843, 46225, 129215, 646075, 1111249, 5556245, 27781225]

約数ペア:

[(1, 27781225), (5, 5556245), (25, 1111249), (43, 646075), (215, 129215), (601, 46225), (1075, 25843), (1849, 15025), (3005, 9245)]