681020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2003}}^1$

素因数の和:2029

約数の個数: 24

約数和(自身を含む): 1515024

約数和(自身を除く): 834004

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2003, 4006, 8012, 10015, 20030, 34051, 40060, 68102, 136204, 170255, 340510, 681020]

約数ペア:

[(1, 681020), (2, 340510), (4, 170255), (5, 136204), (10, 68102), (17, 40060), (20, 34051), (34, 20030), (68, 10015), (85, 8012), (170, 4006), (340, 2003)]