16000025

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{761}}^1$

素因数の和:829

約数の個数: 18

約数和(自身を含む): 20574762

約数和(自身を除く): 4574737

約数列:

[1, 5, 25, 29, 145, 725, 761, 841, 3805, 4205, 19025, 21025, 22069, 110345, 551725, 640001, 3200005, 16000025]

約数ペア:

[(1, 16000025), (5, 3200005), (25, 640001), (29, 551725), (145, 110345), (725, 22069), (761, 21025), (841, 19025), (3805, 4205)]