20791336412

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{27791}}^1$

素因数の和:28167

約数の個数: 72

約数和(自身を含む): 46307697408

約数和(自身を除く): 25516360996

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 347, 539, 694, 1078, 1388, 2156, 2429, 3817, 4858, 7634, 9716, 15268, 17003, 26719, 27791, 34006, 53438, 55582, 68012, 106876, 111164, 187033, 194537, 305701, 374066, 389074, 611402, 748132, 778148, 1222804, 1361759, 2139907, 2723518, 4279814, 5447036, 8559628, 9643477, 14979349, 19286954, 29958698, 38573908, 59917396, 67504339, 106078247, 135008678, 212156494, 270017356, 424312988, 472530373, 742547729, 945060746, 1485095458, 1890121492, 2970190916, 5197834103, 10395668206, 20791336412]

約数ペア:

[(1, 20791336412), (2, 10395668206), (4, 5197834103), (7, 2970190916), (11, 1890121492), (14, 1485095458), (22, 945060746), (28, 742547729), (44, 472530373), (49, 424312988), (77, 270017356), (98, 212156494), (154, 135008678), (196, 106078247), (308, 67504339), (347, 59917396), (539, 38573908), (694, 29958698), (1078, 19286954), (1388, 14979349), (2156, 9643477), (2429, 8559628), (3817, 5447036), (4858, 4279814), (7634, 2723518), (9716, 2139907), (15268, 1361759), (17003, 1222804), (26719, 778148), (27791, 748132), (34006, 611402), (53438, 389074), (55582, 374066), (68012, 305701), (106876, 194537), (111164, 187033)]