20780730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10039}}^1$

素因数の和:10075

約数の個数: 48

約数和(自身を含む): 56384640

約数和(自身を除く): 35603910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 10039, 20078, 30117, 50195, 60234, 90351, 100390, 150585, 180702, 230897, 301170, 451755, 461794, 692691, 903510, 1154485, 1385382, 2078073, 2308970, 3463455, 4156146, 6926910, 10390365, 20780730]

約数ペア:

[(1, 20780730), (2, 10390365), (3, 6926910), (5, 4156146), (6, 3463455), (9, 2308970), (10, 2078073), (15, 1385382), (18, 1154485), (23, 903510), (30, 692691), (45, 461794), (46, 451755), (69, 301170), (90, 230897), (115, 180702), (138, 150585), (207, 100390), (230, 90351), (345, 60234), (414, 50195), (690, 30117), (1035, 20078), (2070, 10039)]