208538405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1\times {\mathrm{4691}}^1$

素因数の和:5236

約数の個数: 16

約数和(自身を含む): 265529664

約数和(自身を除く): 56991259

約数列:

[1, 5, 17, 85, 523, 2615, 4691, 8891, 23455, 44455, 79747, 398735, 2453393, 12266965, 41707681, 208538405]

約数ペア:

[(1, 208538405), (5, 41707681), (17, 12266965), (85, 2453393), (523, 398735), (2615, 79747), (4691, 44455), (8891, 23455)]