203420180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{114281}}^1$

素因数の和:114379

約数の個数: 24

約数和(自身を含む): 431985960

約数和(自身を除く): 228565780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 114281, 228562, 457124, 571405, 1142810, 2285620, 10171009, 20342018, 40684036, 50855045, 101710090, 203420180]

約数ペア:

[(1, 203420180), (2, 101710090), (4, 50855045), (5, 40684036), (10, 20342018), (20, 10171009), (89, 2285620), (178, 1142810), (356, 571405), (445, 457124), (890, 228562), (1780, 114281)]