7439860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 16454592

約数和(自身を除く): 9014732

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 211, 215, 410, 422, 430, 820, 844, 860, 1055, 1763, 2110, 3526, 4220, 7052, 8651, 8815, 9073, 17302, 17630, 18146, 34604, 35260, 36292, 43255, 45365, 86510, 90730, 173020, 181460, 371993, 743986, 1487972, 1859965, 3719930, 7439860]

約数ペア:

[(1, 7439860), (2, 3719930), (4, 1859965), (5, 1487972), (10, 743986), (20, 371993), (41, 181460), (43, 173020), (82, 90730), (86, 86510), (164, 45365), (172, 43255), (205, 36292), (211, 35260), (215, 34604), (410, 18146), (422, 17630), (430, 17302), (820, 9073), (844, 8815), (860, 8651), (1055, 7052), (1763, 4220), (2110, 3526)]