20736040906

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{8011}}^1$

素因数の和:8339

約数の個数: 64

約数和(自身を含む): 38580664320

約数和(自身を除く): 17844623414

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 263, 266, 518, 526, 703, 1406, 1841, 3682, 4921, 4997, 8011, 9731, 9842, 9994, 16022, 19462, 34979, 56077, 68117, 69958, 112154, 136234, 152209, 184889, 296407, 304418, 369778, 592814, 1065463, 1294223, 2074849, 2106893, 2130926, 2588446, 4149698, 4213786, 5631733, 11263466, 14748251, 29496502, 39422131, 40030967, 77955041, 78844262, 80061934, 155910082, 280216769, 545685287, 560433538, 1091370574, 1481145779, 2962291558, 10368020453, 20736040906]

約数ペア:

[(1, 20736040906), (2, 10368020453), (7, 2962291558), (14, 1481145779), (19, 1091370574), (37, 560433538), (38, 545685287), (74, 280216769), (133, 155910082), (259, 80061934), (263, 78844262), (266, 77955041), (518, 40030967), (526, 39422131), (703, 29496502), (1406, 14748251), (1841, 11263466), (3682, 5631733), (4921, 4213786), (4997, 4149698), (8011, 2588446), (9731, 2130926), (9842, 2106893), (9994, 2074849), (16022, 1294223), (19462, 1065463), (34979, 592814), (56077, 369778), (68117, 304418), (69958, 296407), (112154, 184889), (136234, 152209)]