211370390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{991}}^1$

素因数の和:1293

約数の個数: 64

約数和(自身を含む): 476540928

約数和(自身を除く): 265170538

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 277, 385, 554, 770, 991, 1385, 1939, 1982, 2770, 3047, 3878, 4955, 6094, 6937, 9695, 9910, 10901, 13874, 15235, 19390, 21329, 21802, 30470, 34685, 42658, 54505, 69370, 76307, 106645, 109010, 152614, 213290, 274507, 381535, 549014, 763070, 1372535, 1921549, 2745070, 3019577, 3843098, 6039154, 9607745, 15097885, 19215490, 21137039, 30195770, 42274078, 105685195, 211370390]

約数ペア:

[(1, 211370390), (2, 105685195), (5, 42274078), (7, 30195770), (10, 21137039), (11, 19215490), (14, 15097885), (22, 9607745), (35, 6039154), (55, 3843098), (70, 3019577), (77, 2745070), (110, 1921549), (154, 1372535), (277, 763070), (385, 549014), (554, 381535), (770, 274507), (991, 213290), (1385, 152614), (1939, 109010), (1982, 106645), (2770, 76307), (3047, 69370), (3878, 54505), (4955, 42658), (6094, 34685), (6937, 30470), (9695, 21802), (9910, 21329), (10901, 19390), (13874, 15235)]