71785540

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{9041}}^1$

素因数の和:9447

約数の個数: 24

約数和(自身を含む): 151146072

約数和(自身を除く): 79360532

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 9041, 18082, 36164, 45205, 90410, 180820, 3589277, 7178554, 14357108, 17946385, 35892770, 71785540]

約数ペア:

[(1, 71785540), (2, 35892770), (4, 17946385), (5, 14357108), (10, 7178554), (20, 3589277), (397, 180820), (794, 90410), (1588, 45205), (1985, 36164), (3970, 18082), (7940, 9041)]