8439020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3221}}^1$

素因数の和:3361

約数の個数: 24

約数和(自身を含む): 17862768

約数和(自身を除く): 9423748

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 3221, 6442, 12884, 16105, 32210, 64420, 421951, 843902, 1687804, 2109755, 4219510, 8439020]

約数ペア:

[(1, 8439020), (2, 4219510), (4, 2109755), (5, 1687804), (10, 843902), (20, 421951), (131, 64420), (262, 32210), (524, 16105), (655, 12884), (1310, 6442), (2620, 3221)]