19940780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{26947}}^1$

素因数の和:26993

約数の個数: 24

約数和(自身を含む): 43009008

約数和(自身を除く): 23068228

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 26947, 53894, 107788, 134735, 269470, 538940, 997039, 1994078, 3988156, 4985195, 9970390, 19940780]

約数ペア:

[(1, 19940780), (2, 9970390), (4, 4985195), (5, 3988156), (10, 1994078), (20, 997039), (37, 538940), (74, 269470), (148, 134735), (185, 107788), (370, 53894), (740, 26947)]