308940920

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{9547}}^1$

素因数の和:10367

約数の個数: 32

約数和(自身を含む): 696049200

約数和(自身を除く): 387108280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 3236, 4045, 6472, 8090, 9547, 16180, 19094, 32360, 38188, 47735, 76376, 95470, 190940, 381880, 7723523, 15447046, 30894092, 38617615, 61788184, 77235230, 154470460, 308940920]

約数ペア:

[(1, 308940920), (2, 154470460), (4, 77235230), (5, 61788184), (8, 38617615), (10, 30894092), (20, 15447046), (40, 7723523), (809, 381880), (1618, 190940), (3236, 95470), (4045, 76376), (6472, 47735), (8090, 38188), (9547, 32360), (16180, 19094)]