405010

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:509

約数の個数: 16

約数和(自身を含む): 738072

約数和(自身を除く): 333062

約数列:

[1, 2, 5, 10, 101, 202, 401, 505, 802, 1010, 2005, 4010, 40501, 81002, 202505, 405010]

約数ペア:

[(1, 405010), (2, 202505), (5, 81002), (10, 40501), (101, 4010), (202, 2005), (401, 1010), (505, 802)]