805476670

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{200867}}^1$

素因数の和:201275

約数の個数: 16

約数和(自身を含む): 1453480848

約数和(自身を除く): 648004178

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 200867, 401734, 1004335, 2008670, 80547667, 161095334, 402738335, 805476670]

約数ペア:

[(1, 805476670), (2, 402738335), (5, 161095334), (10, 80547667), (401, 2008670), (802, 1004335), (2005, 401734), (4010, 200867)]