80020640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1931}}^1$

素因数の和:1990

約数の個数: 96

約数和(自身を含む): 222009984

約数和(自身を除く): 141989344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 160, 185, 224, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1120, 1184, 1295, 1480, 1931, 2072, 2590, 2960, 3862, 4144, 5180, 5920, 7724, 8288, 9655, 10360, 13517, 15448, 19310, 20720, 27034, 30896, 38620, 41440, 54068, 61792, 67585, 71447, 77240, 108136, 135170, 142894, 154480, 216272, 270340, 285788, 308960, 357235, 432544, 500129, 540680, 571576, 714470, 1000258, 1081360, 1143152, 1428940, 2000516, 2162720, 2286304, 2500645, 2857880, 4001032, 5001290, 5715760, 8002064, 10002580, 11431520, 16004128, 20005160, 40010320, 80020640]

約数ペア:

[(1, 80020640), (2, 40010320), (4, 20005160), (5, 16004128), (7, 11431520), (8, 10002580), (10, 8002064), (14, 5715760), (16, 5001290), (20, 4001032), (28, 2857880), (32, 2500645), (35, 2286304), (37, 2162720), (40, 2000516), (56, 1428940), (70, 1143152), (74, 1081360), (80, 1000258), (112, 714470), (140, 571576), (148, 540680), (160, 500129), (185, 432544), (224, 357235), (259, 308960), (280, 285788), (296, 270340), (370, 216272), (518, 154480), (560, 142894), (592, 135170), (740, 108136), (1036, 77240), (1120, 71447), (1184, 67585), (1295, 61792), (1480, 54068), (1931, 41440), (2072, 38620), (2590, 30896), (2960, 27034), (3862, 20720), (4144, 19310), (5180, 15448), (5920, 13517), (7724, 10360), (8288, 9655)]