20512073409

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{587}}^1$

素因数の和:974

約数の個数: 64

約数和(自身を含む): 30177100800

約数和(自身を除く): 9665027391

約数列:

[1, 3, 19, 43, 53, 57, 129, 159, 269, 587, 807, 817, 1007, 1761, 2279, 2451, 3021, 5111, 6837, 11153, 11567, 14257, 15333, 25241, 31111, 33459, 34701, 42771, 43301, 75723, 93333, 129903, 157903, 219773, 270883, 473709, 479579, 591109, 613051, 659319, 812649, 1337773, 1438737, 1773327, 1839153, 3000157, 4013319, 6789829, 8368859, 9000471, 11647969, 20369487, 25106577, 25417687, 34943907, 76253061, 129006751, 159008321, 359860937, 387020253, 477024963, 1079582811, 6837357803, 20512073409]

約数ペア:

[(1, 20512073409), (3, 6837357803), (19, 1079582811), (43, 477024963), (53, 387020253), (57, 359860937), (129, 159008321), (159, 129006751), (269, 76253061), (587, 34943907), (807, 25417687), (817, 25106577), (1007, 20369487), (1761, 11647969), (2279, 9000471), (2451, 8368859), (3021, 6789829), (5111, 4013319), (6837, 3000157), (11153, 1839153), (11567, 1773327), (14257, 1438737), (15333, 1337773), (25241, 812649), (31111, 659319), (33459, 613051), (34701, 591109), (42771, 479579), (43301, 473709), (75723, 270883), (93333, 219773), (129903, 157903)]