81671576

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1301}}^1$

素因数の和:1392

約数の個数: 64

約数和(自身を含む): 187488000

約数和(自身を除く): 105816424

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 59, 76, 118, 133, 152, 236, 266, 413, 472, 532, 826, 1064, 1121, 1301, 1652, 2242, 2602, 3304, 4484, 5204, 7847, 8968, 9107, 10408, 15694, 18214, 24719, 31388, 36428, 49438, 62776, 72856, 76759, 98876, 153518, 173033, 197752, 307036, 346066, 537313, 614072, 692132, 1074626, 1384264, 1458421, 2149252, 2916842, 4298504, 5833684, 10208947, 11667368, 20417894, 40835788, 81671576]

約数ペア:

[(1, 81671576), (2, 40835788), (4, 20417894), (7, 11667368), (8, 10208947), (14, 5833684), (19, 4298504), (28, 2916842), (38, 2149252), (56, 1458421), (59, 1384264), (76, 1074626), (118, 692132), (133, 614072), (152, 537313), (236, 346066), (266, 307036), (413, 197752), (472, 173033), (532, 153518), (826, 98876), (1064, 76759), (1121, 72856), (1301, 62776), (1652, 49438), (2242, 36428), (2602, 31388), (3304, 24719), (4484, 18214), (5204, 15694), (7847, 10408), (8968, 9107)]