89869420

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{15991}}^1$

素因数の和:16281

約数の個数: 24

約数和(自身を含む): 189409248

約数和(自身を除く): 99539828

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 15991, 31982, 63964, 79955, 159910, 319820, 4493471, 8986942, 17973884, 22467355, 44934710, 89869420]

約数ペア:

[(1, 89869420), (2, 44934710), (4, 22467355), (5, 17973884), (10, 8986942), (20, 4493471), (281, 319820), (562, 159910), (1124, 79955), (1405, 63964), (2810, 31982), (5620, 15991)]