212501855

素因数分解:

$5^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1\times {\mathrm{643}}^1$

素因数の和:1226

約数の個数: 16

約数和(自身を含む): 257636064

約数和(自身を除く): 45134209

約数列:

[1, 5, 157, 421, 643, 785, 2105, 3215, 66097, 100951, 270703, 330485, 504755, 1353515, 42500371, 212501855]

約数ペア:

[(1, 212501855), (5, 42500371), (157, 1353515), (421, 504755), (643, 330485), (785, 270703), (2105, 100951), (3215, 66097)]