20189420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27283}}^1$

素因数の和:27329

約数の個数: 24

約数和(自身を含む): 43545264

約数和(自身を除く): 23355844

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27283, 54566, 109132, 136415, 272830, 545660, 1009471, 2018942, 4037884, 5047355, 10094710, 20189420]

約数ペア:

[(1, 20189420), (2, 10094710), (4, 5047355), (5, 4037884), (10, 2018942), (20, 1009471), (37, 545660), (74, 272830), (148, 136415), (185, 109132), (370, 54566), (740, 27283)]