158970025

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{7561}}^1$

素因数の和:7629

約数の個数: 18

約数和(自身を含む): 204181562

約数和(自身を除く): 45211537

約数列:

[1, 5, 25, 29, 145, 725, 841, 4205, 7561, 21025, 37805, 189025, 219269, 1096345, 5481725, 6358801, 31794005, 158970025]

約数ペア:

[(1, 158970025), (5, 31794005), (25, 6358801), (29, 5481725), (145, 1096345), (725, 219269), (841, 189025), (4205, 37805), (7561, 21025)]