28018025

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6961}}^1$

素因数の和:7001

約数の個数: 24

約数和(自身を含む): 41437824

約数和(自身を除く): 13419799

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 6961, 34805, 48727, 160103, 174025, 243635, 800515, 1120721, 1218175, 4002575, 5603605, 28018025]

約数ペア:

[(1, 28018025), (5, 5603605), (7, 4002575), (23, 1218175), (25, 1120721), (35, 800515), (115, 243635), (161, 174025), (175, 160103), (575, 48727), (805, 34805), (4025, 6961)]