80865824

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:842

約数の個数: 72

約数和(自身を含む): 181697040

約数和(自身を除く): 100831216

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 169, 208, 247, 304, 338, 416, 494, 608, 676, 787, 988, 1352, 1574, 1976, 2704, 3148, 3211, 3952, 5408, 6296, 6422, 7904, 10231, 12592, 12844, 14953, 20462, 25184, 25688, 29906, 40924, 51376, 59812, 81848, 102752, 119624, 133003, 163696, 194389, 239248, 266006, 327392, 388778, 478496, 532012, 777556, 1064024, 1555112, 2128048, 2527057, 3110224, 4256096, 5054114, 6220448, 10108228, 20216456, 40432912, 80865824]

約数ペア:

[(1, 80865824), (2, 40432912), (4, 20216456), (8, 10108228), (13, 6220448), (16, 5054114), (19, 4256096), (26, 3110224), (32, 2527057), (38, 2128048), (52, 1555112), (76, 1064024), (104, 777556), (152, 532012), (169, 478496), (208, 388778), (247, 327392), (304, 266006), (338, 239248), (416, 194389), (494, 163696), (608, 133003), (676, 119624), (787, 102752), (988, 81848), (1352, 59812), (1574, 51376), (1976, 40924), (2704, 29906), (3148, 25688), (3211, 25184), (3952, 20462), (5408, 14953), (6296, 12844), (6422, 12592), (7904, 10231)]