388356865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 553512960

約数和(自身を除く): 165156095

約数列:

[1, 5, 13, 19, 43, 65, 71, 95, 103, 215, 247, 355, 515, 559, 817, 923, 1235, 1339, 1349, 1957, 2795, 3053, 4085, 4429, 4615, 6695, 6745, 7313, 9785, 10621, 15265, 17537, 22145, 25441, 36565, 39689, 53105, 57577, 58007, 84151, 87685, 95069, 127205, 138947, 198445, 287885, 290035, 314459, 420755, 475345, 694735, 754091, 1093963, 1572295, 1806311, 3770455, 4087967, 5469815, 5974721, 9031555, 20439835, 29873605, 77671373, 388356865]

約数ペア:

[(1, 388356865), (5, 77671373), (13, 29873605), (19, 20439835), (43, 9031555), (65, 5974721), (71, 5469815), (95, 4087967), (103, 3770455), (215, 1806311), (247, 1572295), (355, 1093963), (515, 754091), (559, 694735), (817, 475345), (923, 420755), (1235, 314459), (1339, 290035), (1349, 287885), (1957, 198445), (2795, 138947), (3053, 127205), (4085, 95069), (4429, 87685), (4615, 84151), (6695, 58007), (6745, 57577), (7313, 53105), (9785, 39689), (10621, 36565), (15265, 25441), (17537, 22145)]