207855980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{2393}}^1$

素因数の和:2546

約数の個数: 48

約数和(自身を含む): 451259424

約数和(自身を除く): 243403444

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 101, 172, 202, 215, 404, 430, 505, 860, 1010, 2020, 2393, 4343, 4786, 8686, 9572, 11965, 17372, 21715, 23930, 43430, 47860, 86860, 102899, 205798, 241693, 411596, 483386, 514495, 966772, 1028990, 1208465, 2057980, 2416930, 4833860, 10392799, 20785598, 41571196, 51963995, 103927990, 207855980]

約数ペア:

[(1, 207855980), (2, 103927990), (4, 51963995), (5, 41571196), (10, 20785598), (20, 10392799), (43, 4833860), (86, 2416930), (101, 2057980), (172, 1208465), (202, 1028990), (215, 966772), (404, 514495), (430, 483386), (505, 411596), (860, 241693), (1010, 205798), (2020, 102899), (2393, 86860), (4343, 47860), (4786, 43430), (8686, 23930), (9572, 21715), (11965, 17372)]