20158304

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:543

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 22026496

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 61, 92, 122, 184, 244, 368, 449, 488, 736, 898, 976, 1403, 1796, 1952, 2806, 3592, 5612, 7184, 10327, 11224, 14368, 20654, 22448, 27389, 41308, 44896, 54778, 82616, 109556, 165232, 219112, 330464, 438224, 629947, 876448, 1259894, 2519788, 5039576, 10079152, 20158304]

約数ペア:

[(1, 20158304), (2, 10079152), (4, 5039576), (8, 2519788), (16, 1259894), (23, 876448), (32, 629947), (46, 438224), (61, 330464), (92, 219112), (122, 165232), (184, 109556), (244, 82616), (368, 54778), (449, 44896), (488, 41308), (736, 27389), (898, 22448), (976, 20654), (1403, 14368), (1796, 11224), (1952, 10327), (2806, 7184), (3592, 5612)]