16405940

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3119}}^1$

素因数の和:3391

約数の個数: 24

約数和(自身を含む): 34594560

約数和(自身を除く): 18188620

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3119, 5260, 6238, 12476, 15595, 31190, 62380, 820297, 1640594, 3281188, 4101485, 8202970, 16405940]

約数ペア:

[(1, 16405940), (2, 8202970), (4, 4101485), (5, 3281188), (10, 1640594), (20, 820297), (263, 62380), (526, 31190), (1052, 15595), (1315, 12476), (2630, 6238), (3119, 5260)]