80135980

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{11161}}^1$

素因数の和:11529

約数の個数: 24

約数和(自身を含む): 168769440

約数和(自身を除く): 88633460

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 11161, 22322, 44644, 55805, 111610, 223220, 4006799, 8013598, 16027196, 20033995, 40067990, 80135980]

約数ペア:

[(1, 80135980), (2, 40067990), (4, 20033995), (5, 16027196), (10, 8013598), (20, 4006799), (359, 223220), (718, 111610), (1436, 55805), (1795, 44644), (3590, 22322), (7180, 11161)]