20736020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7459}}^1$

素因数の和:7607

約数の個数: 24

約数和(自身を含む): 43864800

約数和(自身を除く): 23128780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7459, 14918, 29836, 37295, 74590, 149180, 1036801, 2073602, 4147204, 5184005, 10368010, 20736020]

約数ペア:

[(1, 20736020), (2, 10368010), (4, 5184005), (5, 4147204), (10, 2073602), (20, 1036801), (139, 149180), (278, 74590), (556, 37295), (695, 29836), (1390, 14918), (2780, 7459)]