20599408

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1$

素因数の和:509

約数の個数: 40

約数和(自身を含む): 41465600

約数和(自身を除く): 20866192

約数列:

[1, 2, 4, 8, 16, 43, 79, 86, 158, 172, 316, 344, 379, 632, 688, 758, 1264, 1516, 3032, 3397, 6064, 6794, 13588, 16297, 27176, 29941, 32594, 54352, 59882, 65188, 119764, 130376, 239528, 260752, 479056, 1287463, 2574926, 5149852, 10299704, 20599408]

約数ペア:

[(1, 20599408), (2, 10299704), (4, 5149852), (8, 2574926), (16, 1287463), (43, 479056), (79, 260752), (86, 239528), (158, 130376), (172, 119764), (316, 65188), (344, 59882), (379, 54352), (632, 32594), (688, 29941), (758, 27176), (1264, 16297), (1516, 13588), (3032, 6794), (3397, 6064)]