20112877918

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{6563}}^1$

素因数の和:6913

約数の個数: 64

約数和(自身を含む): 37317127680

約数和(自身を除く): 17204249762

約数列:

[1, 2, 7, 14, 19, 38, 41, 82, 133, 266, 281, 287, 562, 574, 779, 1558, 1967, 3934, 5339, 5453, 6563, 10678, 10906, 11521, 13126, 23042, 37373, 45941, 74746, 80647, 91882, 124697, 161294, 218899, 249394, 269083, 437798, 538166, 872879, 1532293, 1745758, 1844203, 1883581, 3064586, 3688406, 3767162, 5112577, 10225154, 12909421, 25818842, 35039857, 35788039, 70079714, 71576078, 75612323, 151224646, 245278999, 490557998, 529286261, 1058572522, 1436634137, 2873268274, 10056438959, 20112877918]

約数ペア:

[(1, 20112877918), (2, 10056438959), (7, 2873268274), (14, 1436634137), (19, 1058572522), (38, 529286261), (41, 490557998), (82, 245278999), (133, 151224646), (266, 75612323), (281, 71576078), (287, 70079714), (562, 35788039), (574, 35039857), (779, 25818842), (1558, 12909421), (1967, 10225154), (3934, 5112577), (5339, 3767162), (5453, 3688406), (6563, 3064586), (10678, 1883581), (10906, 1844203), (11521, 1745758), (13126, 1532293), (23042, 872879), (37373, 538166), (45941, 437798), (74746, 269083), (80647, 249394), (91882, 218899), (124697, 161294)]