13040980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4691}}^1$

素因数の和:4839

約数の個数: 24

約数和(自身を含む): 27588960

約数和(自身を除く): 14547980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 4691, 9382, 18764, 23455, 46910, 93820, 652049, 1304098, 2608196, 3260245, 6520490, 13040980]

約数ペア:

[(1, 13040980), (2, 6520490), (4, 3260245), (5, 2608196), (10, 1304098), (20, 652049), (139, 93820), (278, 46910), (556, 23455), (695, 18764), (1390, 9382), (2780, 4691)]