78855820

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{6151}}^1$

素因数の和:6801

約数の個数: 24

約数和(自身を含む): 165882528

約数和(自身を除く): 87026708

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6151, 6410, 12302, 12820, 24604, 30755, 61510, 123020, 3942791, 7885582, 15771164, 19713955, 39427910, 78855820]

約数ペア:

[(1, 78855820), (2, 39427910), (4, 19713955), (5, 15771164), (10, 7885582), (20, 3942791), (641, 123020), (1282, 61510), (2564, 30755), (3205, 24604), (6151, 12820), (6410, 12302)]