8738920

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1109}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 19780200

約数和(自身を除く): 11041280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1109, 1576, 1970, 2218, 3940, 4436, 5545, 7880, 8872, 11090, 22180, 44360, 218473, 436946, 873892, 1092365, 1747784, 2184730, 4369460, 8738920]

約数ペア:

[(1, 8738920), (2, 4369460), (4, 2184730), (5, 1747784), (8, 1092365), (10, 873892), (20, 436946), (40, 218473), (197, 44360), (394, 22180), (788, 11090), (985, 8872), (1109, 7880), (1576, 5545), (1970, 4436), (2218, 3940)]