161156875

素因数分解:

$5^4\times {\mathrm{11}}^2\times {\mathrm{2131}}^1$

素因数の和:2173

約数の個数: 30

約数和(自身を含む): 221457236

約数和(自身を除く): 60300361

約数列:

[1, 5, 11, 25, 55, 121, 125, 275, 605, 625, 1375, 2131, 3025, 6875, 10655, 15125, 23441, 53275, 75625, 117205, 257851, 266375, 586025, 1289255, 1331875, 2930125, 6446275, 14650625, 32231375, 161156875]

約数ペア:

[(1, 161156875), (5, 32231375), (11, 14650625), (25, 6446275), (55, 2930125), (121, 1331875), (125, 1289255), (275, 586025), (605, 266375), (625, 257851), (1375, 117205), (2131, 75625), (3025, 53275), (6875, 23441), (10655, 15125)]