81680924

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1759}}^1$

素因数の和:1842

約数の個数: 48

約数和(自身を含む): 165580800

約数和(自身を除く): 83899876

約数列:

[1, 2, 4, 13, 19, 26, 38, 47, 52, 76, 94, 188, 247, 494, 611, 893, 988, 1222, 1759, 1786, 2444, 3518, 3572, 7036, 11609, 22867, 23218, 33421, 45734, 46436, 66842, 82673, 91468, 133684, 165346, 330692, 434473, 868946, 1074749, 1570787, 1737892, 2149498, 3141574, 4298996, 6283148, 20420231, 40840462, 81680924]

約数ペア:

[(1, 81680924), (2, 40840462), (4, 20420231), (13, 6283148), (19, 4298996), (26, 3141574), (38, 2149498), (47, 1737892), (52, 1570787), (76, 1074749), (94, 868946), (188, 434473), (247, 330692), (494, 165346), (611, 133684), (893, 91468), (988, 82673), (1222, 66842), (1759, 46436), (1786, 45734), (2444, 33421), (3518, 23218), (3572, 22867), (7036, 11609)]