26647960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15493}}^1$

素因数の和:15547

約数の個数: 32

約数和(自身を含む): 61356240

約数和(自身を除く): 34708280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 15493, 30986, 61972, 77465, 123944, 154930, 309860, 619720, 666199, 1332398, 2664796, 3330995, 5329592, 6661990, 13323980, 26647960]

約数ペア:

[(1, 26647960), (2, 13323980), (4, 6661990), (5, 5329592), (8, 3330995), (10, 2664796), (20, 1332398), (40, 666199), (43, 619720), (86, 309860), (172, 154930), (215, 123944), (344, 77465), (430, 61972), (860, 30986), (1720, 15493)]