20804085112

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{479}}^1\times {\mathrm{1753}}^1$

素因数の和:2420

約数の個数: 64

約数和(自身を含む): 41422464000

約数和(自身を除く): 20618378888

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 163, 326, 479, 652, 958, 1304, 1753, 1916, 3097, 3506, 3832, 6194, 7012, 9101, 12388, 14024, 18202, 24776, 33307, 36404, 66614, 72808, 78077, 133228, 156154, 266456, 285739, 312308, 571478, 624616, 839687, 1142956, 1483463, 1679374, 2285912, 2966926, 3358748, 5429041, 5933852, 6717496, 10858082, 11867704, 15954053, 21716164, 31908106, 43432328, 63816212, 127632424, 136868981, 273737962, 547475924, 1094951848, 2600510639, 5201021278, 10402042556, 20804085112]

約数ペア:

[(1, 20804085112), (2, 10402042556), (4, 5201021278), (8, 2600510639), (19, 1094951848), (38, 547475924), (76, 273737962), (152, 136868981), (163, 127632424), (326, 63816212), (479, 43432328), (652, 31908106), (958, 21716164), (1304, 15954053), (1753, 11867704), (1916, 10858082), (3097, 6717496), (3506, 5933852), (3832, 5429041), (6194, 3358748), (7012, 2966926), (9101, 2285912), (12388, 1679374), (14024, 1483463), (18202, 1142956), (24776, 839687), (33307, 624616), (36404, 571478), (66614, 312308), (72808, 285739), (78077, 266456), (133228, 156154)]