18503920

素因数分解:

$2^4\times 5^1\times {\mathrm{231299}}^1$

素因数の和:231312

約数の個数: 20

約数和(自身を含む): 43021800

約数和(自身を除く): 24517880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231299, 462598, 925196, 1156495, 1850392, 2312990, 3700784, 4625980, 9251960, 18503920]

約数ペア:

[(1, 18503920), (2, 9251960), (4, 4625980), (5, 3700784), (8, 2312990), (10, 1850392), (16, 1156495), (20, 925196), (40, 462598), (80, 231299)]