12421820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 27824160

約数和(自身を除く): 15402340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 337, 380, 388, 485, 674, 970, 1348, 1685, 1843, 1940, 3370, 3686, 6403, 6740, 7372, 9215, 12806, 18430, 25612, 32015, 32689, 36860, 64030, 65378, 128060, 130756, 163445, 326890, 621091, 653780, 1242182, 2484364, 3105455, 6210910, 12421820]

約数ペア:

[(1, 12421820), (2, 6210910), (4, 3105455), (5, 2484364), (10, 1242182), (19, 653780), (20, 621091), (38, 326890), (76, 163445), (95, 130756), (97, 128060), (190, 65378), (194, 64030), (337, 36860), (380, 32689), (388, 32015), (485, 25612), (674, 18430), (970, 12806), (1348, 9215), (1685, 7372), (1843, 6740), (1940, 6403), (3370, 3686)]