18079420

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{5413}}^1$

素因数の和:5589

約数の個数: 24

約数和(自身を含む): 38201184

約数和(自身を除く): 20121764

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 5413, 10826, 21652, 27065, 54130, 108260, 903971, 1807942, 3615884, 4519855, 9039710, 18079420]

約数ペア:

[(1, 18079420), (2, 9039710), (4, 4519855), (5, 3615884), (10, 1807942), (20, 903971), (167, 108260), (334, 54130), (668, 27065), (835, 21652), (1670, 10826), (3340, 5413)]