19808432

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:186

約数の個数: 80

約数和(自身を含む): 46282752

約数和(自身を除く): 26474320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 53, 56, 71, 94, 106, 112, 142, 188, 212, 284, 329, 371, 376, 424, 497, 568, 658, 742, 752, 848, 994, 1136, 1316, 1484, 1988, 2491, 2632, 2968, 3337, 3763, 3976, 4982, 5264, 5936, 6674, 7526, 7952, 9964, 13348, 15052, 17437, 19928, 23359, 26341, 26696, 30104, 34874, 39856, 46718, 52682, 53392, 60208, 69748, 93436, 105364, 139496, 176861, 186872, 210728, 278992, 353722, 373744, 421456, 707444, 1238027, 1414888, 2476054, 2829776, 4952108, 9904216, 19808432]

約数ペア:

[(1, 19808432), (2, 9904216), (4, 4952108), (7, 2829776), (8, 2476054), (14, 1414888), (16, 1238027), (28, 707444), (47, 421456), (53, 373744), (56, 353722), (71, 278992), (94, 210728), (106, 186872), (112, 176861), (142, 139496), (188, 105364), (212, 93436), (284, 69748), (329, 60208), (371, 53392), (376, 52682), (424, 46718), (497, 39856), (568, 34874), (658, 30104), (742, 26696), (752, 26341), (848, 23359), (994, 19928), (1136, 17437), (1316, 15052), (1484, 13348), (1988, 9964), (2491, 7952), (2632, 7526), (2968, 6674), (3337, 5936), (3763, 5264), (3976, 4982)]