20380256

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{48991}}^1$

素因数の和:49014

約数の個数: 24

約数和(自身を含む): 43210944

約数和(自身を除く): 22830688

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 48991, 97982, 195964, 391928, 636883, 783856, 1273766, 1567712, 2547532, 5095064, 10190128, 20380256]

約数ペア:

[(1, 20380256), (2, 10190128), (4, 5095064), (8, 2547532), (13, 1567712), (16, 1273766), (26, 783856), (32, 636883), (52, 391928), (104, 195964), (208, 97982), (416, 48991)]