28044860

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{20929}}^1$

素因数の和:21005

約数の個数: 24

約数和(自身を含む): 59776080

約数和(自身を除く): 31731220

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 20929, 41858, 83716, 104645, 209290, 418580, 1402243, 2804486, 5608972, 7011215, 14022430, 28044860]

約数ペア:

[(1, 28044860), (2, 14022430), (4, 7011215), (5, 5608972), (10, 2804486), (20, 1402243), (67, 418580), (134, 209290), (268, 104645), (335, 83716), (670, 41858), (1340, 20929)]