20790406084

素因数分解:

$2^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1\times {\mathrm{7451}}^1$

素因数の和:8128

約数の個数: 48

約数和(自身を含む): 41864739840

約数和(自身を除く): 21074333756

約数列:

[1, 2, 4, 7, 14, 28, 227, 439, 454, 878, 908, 1589, 1756, 3073, 3178, 6146, 6356, 7451, 12292, 14902, 29804, 52157, 99653, 104314, 199306, 208628, 398612, 697571, 1395142, 1691377, 2790284, 3270989, 3382754, 6541978, 6765508, 11839639, 13083956, 22896923, 23679278, 45793846, 47358556, 91587692, 742514503, 1485029006, 2970058012, 5197601521, 10395203042, 20790406084]

約数ペア:

[(1, 20790406084), (2, 10395203042), (4, 5197601521), (7, 2970058012), (14, 1485029006), (28, 742514503), (227, 91587692), (439, 47358556), (454, 45793846), (878, 23679278), (908, 22896923), (1589, 13083956), (1756, 11839639), (3073, 6765508), (3178, 6541978), (6146, 3382754), (6356, 3270989), (7451, 2790284), (12292, 1691377), (14902, 1395142), (29804, 697571), (52157, 398612), (99653, 208628), (104314, 199306)]