38904280

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8923}}^1$

素因数の和:9043

約数の個数: 32

約数和(自身を含む): 88347600

約数和(自身を除く): 49443320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 8923, 17846, 35692, 44615, 71384, 89230, 178460, 356920, 972607, 1945214, 3890428, 4863035, 7780856, 9726070, 19452140, 38904280]

約数ペア:

[(1, 38904280), (2, 19452140), (4, 9726070), (5, 7780856), (8, 4863035), (10, 3890428), (20, 1945214), (40, 972607), (109, 356920), (218, 178460), (436, 89230), (545, 71384), (872, 44615), (1090, 35692), (2180, 17846), (4360, 8923)]