19745576

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 37920000

約数和(自身を除く): 18174424

約数列:

[1, 2, 4, 8, 79, 157, 158, 199, 314, 316, 398, 628, 632, 796, 1256, 1592, 12403, 15721, 24806, 31243, 31442, 49612, 62486, 62884, 99224, 124972, 125768, 249944, 2468197, 4936394, 9872788, 19745576]

約数ペア:

[(1, 19745576), (2, 9872788), (4, 4936394), (8, 2468197), (79, 249944), (157, 125768), (158, 124972), (199, 99224), (314, 62884), (316, 62486), (398, 49612), (628, 31442), (632, 31243), (796, 24806), (1256, 15721), (1592, 12403)]