247981958

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 514252800

約数和(自身を除く): 266270842

約数列:

[1, 2, 7, 14, 17, 19, 29, 31, 34, 38, 58, 61, 62, 119, 122, 133, 203, 217, 238, 266, 323, 406, 427, 434, 493, 527, 551, 589, 646, 854, 899, 986, 1037, 1054, 1102, 1159, 1178, 1769, 1798, 1891, 2074, 2261, 2318, 3451, 3538, 3689, 3782, 3857, 4123, 4522, 6293, 6902, 7259, 7378, 7714, 8113, 8246, 9367, 10013, 12383, 12586, 13237, 14518, 15283, 16226, 17081, 18734, 19703, 20026, 24766, 26474, 30073, 30566, 32147, 33611, 34162, 35929, 39406, 54839, 60146, 64294, 65569, 67222, 70091, 71858, 106981, 109678, 119567, 131138, 137921, 140182, 210511, 213962, 225029, 235277, 239134, 251503, 275842, 290377, 383873, 421022, 450058, 470554, 503006, 571387, 580754, 610793, 767746, 932263, 1041941, 1142774, 1221586, 1864526, 2032639, 2083882, 3999709, 4065278, 4275551, 6525841, 7293587, 7999418, 8551102, 13051682, 14587174, 17712997, 35425994, 123990979, 247981958]

約数ペア:

[(1, 247981958), (2, 123990979), (7, 35425994), (14, 17712997), (17, 14587174), (19, 13051682), (29, 8551102), (31, 7999418), (34, 7293587), (38, 6525841), (58, 4275551), (61, 4065278), (62, 3999709), (119, 2083882), (122, 2032639), (133, 1864526), (203, 1221586), (217, 1142774), (238, 1041941), (266, 932263), (323, 767746), (406, 610793), (427, 580754), (434, 571387), (493, 503006), (527, 470554), (551, 450058), (589, 421022), (646, 383873), (854, 290377), (899, 275842), (986, 251503), (1037, 239134), (1054, 235277), (1102, 225029), (1159, 213962), (1178, 210511), (1769, 140182), (1798, 137921), (1891, 131138), (2074, 119567), (2261, 109678), (2318, 106981), (3451, 71858), (3538, 70091), (3689, 67222), (3782, 65569), (3857, 64294), (4123, 60146), (4522, 54839), (6293, 39406), (6902, 35929), (7259, 34162), (7378, 33611), (7714, 32147), (8113, 30566), (8246, 30073), (9367, 26474), (10013, 24766), (12383, 20026), (12586, 19703), (13237, 18734), (14518, 17081), (15283, 16226)]