81870052

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 166239360

約数和(自身を除く): 84369308

約数列:

[1, 2, 4, 11, 22, 44, 47, 59, 61, 94, 118, 121, 122, 188, 236, 242, 244, 484, 517, 649, 671, 1034, 1298, 1342, 2068, 2596, 2684, 2773, 2867, 3599, 5546, 5687, 5734, 7139, 7198, 7381, 11092, 11374, 11468, 14278, 14396, 14762, 22748, 28556, 29524, 30503, 31537, 39589, 61006, 63074, 79178, 122012, 126148, 158356, 169153, 335533, 338306, 346907, 435479, 671066, 676612, 693814, 870958, 1342132, 1387628, 1741916, 1860683, 3721366, 7442732, 20467513, 40935026, 81870052]

約数ペア:

[(1, 81870052), (2, 40935026), (4, 20467513), (11, 7442732), (22, 3721366), (44, 1860683), (47, 1741916), (59, 1387628), (61, 1342132), (94, 870958), (118, 693814), (121, 676612), (122, 671066), (188, 435479), (236, 346907), (242, 338306), (244, 335533), (484, 169153), (517, 158356), (649, 126148), (671, 122012), (1034, 79178), (1298, 63074), (1342, 61006), (2068, 39589), (2596, 31537), (2684, 30503), (2773, 29524), (2867, 28556), (3599, 22748), (5546, 14762), (5687, 14396), (5734, 14278), (7139, 11468), (7198, 11374), (7381, 11092)]