20649291250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{57559}}^1$

素因数の和:57629

約数の個数: 80

約数和(自身を含む): 45313994880

約数和(自身を除く): 24664703630

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 41, 50, 70, 82, 125, 175, 205, 250, 287, 350, 410, 574, 625, 875, 1025, 1250, 1435, 1750, 2050, 2870, 4375, 5125, 7175, 8750, 10250, 14350, 25625, 35875, 51250, 57559, 71750, 115118, 179375, 287795, 358750, 402913, 575590, 805826, 1438975, 2014565, 2359919, 2877950, 4029130, 4719838, 7194875, 10072825, 11799595, 14389750, 16519433, 20145650, 23599190, 33038866, 35974375, 50364125, 58997975, 71948750, 82597165, 100728250, 117995950, 165194330, 251820625, 294989875, 412985825, 503641250, 589979750, 825971650, 1474949375, 2064929125, 2949898750, 4129858250, 10324645625, 20649291250]

約数ペア:

[(1, 20649291250), (2, 10324645625), (5, 4129858250), (7, 2949898750), (10, 2064929125), (14, 1474949375), (25, 825971650), (35, 589979750), (41, 503641250), (50, 412985825), (70, 294989875), (82, 251820625), (125, 165194330), (175, 117995950), (205, 100728250), (250, 82597165), (287, 71948750), (350, 58997975), (410, 50364125), (574, 35974375), (625, 33038866), (875, 23599190), (1025, 20145650), (1250, 16519433), (1435, 14389750), (1750, 11799595), (2050, 10072825), (2870, 7194875), (4375, 4719838), (5125, 4029130), (7175, 2877950), (8750, 2359919), (10250, 2014565), (14350, 1438975), (25625, 805826), (35875, 575590), (51250, 402913), (57559, 358750), (71750, 287795), (115118, 179375)]