13403960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7793}}^1$

素因数の和:7847

約数の個数: 32

約数和(自身を含む): 30864240

約数和(自身を除く): 17460280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7793, 15586, 31172, 38965, 62344, 77930, 155860, 311720, 335099, 670198, 1340396, 1675495, 2680792, 3350990, 6701980, 13403960]

約数ペア:

[(1, 13403960), (2, 6701980), (4, 3350990), (5, 2680792), (8, 1675495), (10, 1340396), (20, 670198), (40, 335099), (43, 311720), (86, 155860), (172, 77930), (215, 62344), (344, 38965), (430, 31172), (860, 15586), (1720, 7793)]