90258640

素因数分解:

$2^4\times 5^1\times {\mathrm{1128233}}^1$

素因数の和:1128246

約数の個数: 20

約数和(自身を含む): 209851524

約数和(自身を除く): 119592884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1128233, 2256466, 4512932, 5641165, 9025864, 11282330, 18051728, 22564660, 45129320, 90258640]

約数ペア:

[(1, 90258640), (2, 45129320), (4, 22564660), (5, 18051728), (8, 11282330), (10, 9025864), (16, 5641165), (20, 4512932), (40, 2256466), (80, 1128233)]