188402920

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{23909}}^1$

素因数の和:24117

約数の個数: 32

約数和(自身を含む): 426076200

約数和(自身を除く): 237673280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 23909, 47818, 95636, 119545, 191272, 239090, 478180, 956360, 4710073, 9420146, 18840292, 23550365, 37680584, 47100730, 94201460, 188402920]

約数ペア:

[(1, 188402920), (2, 94201460), (4, 47100730), (5, 37680584), (8, 23550365), (10, 18840292), (20, 9420146), (40, 4710073), (197, 956360), (394, 478180), (788, 239090), (985, 191272), (1576, 119545), (1970, 95636), (3940, 47818), (7880, 23909)]