38969540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21893}}^1$

素因数の和:21991

約数の個数: 24

約数和(自身を含む): 82759320

約数和(自身を除く): 43789780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 21893, 43786, 87572, 109465, 218930, 437860, 1948477, 3896954, 7793908, 9742385, 19484770, 38969540]

約数ペア:

[(1, 38969540), (2, 19484770), (4, 9742385), (5, 7793908), (10, 3896954), (20, 1948477), (89, 437860), (178, 218930), (356, 109465), (445, 87572), (890, 43786), (1780, 21893)]