30716240

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1949}}^1$

素因数の和:2159

約数の個数: 40

約数和(自身を含む): 71814600

約数和(自身を除く): 41098360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1949, 1970, 3152, 3898, 3940, 7796, 7880, 9745, 15592, 15760, 19490, 31184, 38980, 77960, 155920, 383953, 767906, 1535812, 1919765, 3071624, 3839530, 6143248, 7679060, 15358120, 30716240]

約数ペア:

[(1, 30716240), (2, 15358120), (4, 7679060), (5, 6143248), (8, 3839530), (10, 3071624), (16, 1919765), (20, 1535812), (40, 767906), (80, 383953), (197, 155920), (394, 77960), (788, 38980), (985, 31184), (1576, 19490), (1949, 15760), (1970, 15592), (3152, 9745), (3898, 7880), (3940, 7796)]