128445140

素因数分解:

$2^2\times 5^1\times {\mathrm{1439}}^1\times {\mathrm{4463}}^1$

素因数の和:5911

約数の個数: 24

約数和(自身を含む): 269982720

約数和(自身を除く): 141537580

約数列:

[1, 2, 4, 5, 10, 20, 1439, 2878, 4463, 5756, 7195, 8926, 14390, 17852, 22315, 28780, 44630, 89260, 6422257, 12844514, 25689028, 32111285, 64222570, 128445140]

約数ペア:

[(1, 128445140), (2, 64222570), (4, 32111285), (5, 25689028), (10, 12844514), (20, 6422257), (1439, 89260), (2878, 44630), (4463, 28780), (5756, 22315), (7195, 17852), (8926, 14390)]