19905844

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 46448640

約数和(自身を除く): 26542796

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 31, 34, 38, 62, 68, 71, 76, 119, 124, 133, 142, 217, 238, 266, 284, 323, 434, 476, 497, 527, 532, 589, 646, 868, 994, 1054, 1178, 1207, 1292, 1349, 1988, 2108, 2201, 2261, 2356, 2414, 2698, 3689, 4123, 4402, 4522, 4828, 5396, 7378, 8246, 8449, 8804, 9044, 9443, 10013, 14756, 15407, 16492, 16898, 18886, 20026, 22933, 30814, 33796, 37417, 37772, 40052, 41819, 45866, 61628, 70091, 74834, 83638, 91732, 140182, 149668, 160531, 167276, 261919, 280364, 292733, 321062, 523838, 585466, 642124, 710923, 1047676, 1170932, 1421846, 2843692, 4976461, 9952922, 19905844]

約数ペア:

[(1, 19905844), (2, 9952922), (4, 4976461), (7, 2843692), (14, 1421846), (17, 1170932), (19, 1047676), (28, 710923), (31, 642124), (34, 585466), (38, 523838), (62, 321062), (68, 292733), (71, 280364), (76, 261919), (119, 167276), (124, 160531), (133, 149668), (142, 140182), (217, 91732), (238, 83638), (266, 74834), (284, 70091), (323, 61628), (434, 45866), (476, 41819), (497, 40052), (527, 37772), (532, 37417), (589, 33796), (646, 30814), (868, 22933), (994, 20026), (1054, 18886), (1178, 16898), (1207, 16492), (1292, 15407), (1349, 14756), (1988, 10013), (2108, 9443), (2201, 9044), (2261, 8804), (2356, 8449), (2414, 8246), (2698, 7378), (3689, 5396), (4123, 4828), (4402, 4522)]