68438240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2531}}^1$

素因数の和:2572

約数の個数: 72

約数和(自身を含む): 175148568

約数和(自身を除く): 106710328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2531, 2704, 3380, 5062, 5408, 6760, 10124, 12655, 13520, 20248, 25310, 27040, 32903, 40496, 50620, 65806, 80992, 101240, 131612, 164515, 202480, 263224, 329030, 404960, 427739, 526448, 658060, 855478, 1052896, 1316120, 1710956, 2138695, 2632240, 3421912, 4277390, 5264480, 6843824, 8554780, 13687648, 17109560, 34219120, 68438240]

約数ペア:

[(1, 68438240), (2, 34219120), (4, 17109560), (5, 13687648), (8, 8554780), (10, 6843824), (13, 5264480), (16, 4277390), (20, 3421912), (26, 2632240), (32, 2138695), (40, 1710956), (52, 1316120), (65, 1052896), (80, 855478), (104, 658060), (130, 526448), (160, 427739), (169, 404960), (208, 329030), (260, 263224), (338, 202480), (416, 164515), (520, 131612), (676, 101240), (845, 80992), (1040, 65806), (1352, 50620), (1690, 40496), (2080, 32903), (2531, 27040), (2704, 25310), (3380, 20248), (5062, 13520), (5408, 12655), (6760, 10124)]