20388660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{339811}}^1$

素因数の和:339823

約数の個数: 24

約数和(自身を含む): 57088416

約数和(自身を除く): 36699756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 339811, 679622, 1019433, 1359244, 1699055, 2038866, 3398110, 4077732, 5097165, 6796220, 10194330, 20388660]

約数ペア:

[(1, 20388660), (2, 10194330), (3, 6796220), (4, 5097165), (5, 4077732), (6, 3398110), (10, 2038866), (12, 1699055), (15, 1359244), (20, 1019433), (30, 679622), (60, 339811)]