12338980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1709}}^1$

素因数の和:1756

約数の個数: 36

約数和(自身を含む): 27363420

約数和(自身を除く): 15024440

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1709, 1805, 3418, 3610, 6836, 7220, 8545, 17090, 32471, 34180, 64942, 129884, 162355, 324710, 616949, 649420, 1233898, 2467796, 3084745, 6169490, 12338980]

約数ペア:

[(1, 12338980), (2, 6169490), (4, 3084745), (5, 2467796), (10, 1233898), (19, 649420), (20, 616949), (38, 324710), (76, 162355), (95, 129884), (190, 64942), (361, 34180), (380, 32471), (722, 17090), (1444, 8545), (1709, 7220), (1805, 6836), (3418, 3610)]