1520578640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73387}}^1$

素因数の和:73444

約数の個数: 80

約数和(自身を含む): 4149651072

約数和(自身を除く): 2629072432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1295, 1480, 2072, 2590, 2960, 4144, 5180, 10360, 20720, 73387, 146774, 293548, 366935, 513709, 587096, 733870, 1027418, 1174192, 1467740, 2054836, 2568545, 2715319, 2935480, 4109672, 5137090, 5430638, 5870960, 8219344, 10274180, 10861276, 13576595, 19007233, 20548360, 21722552, 27153190, 38014466, 41096720, 43445104, 54306380, 76028932, 95036165, 108612760, 152057864, 190072330, 217225520, 304115728, 380144660, 760289320, 1520578640]

約数ペア:

[(1, 1520578640), (2, 760289320), (4, 380144660), (5, 304115728), (7, 217225520), (8, 190072330), (10, 152057864), (14, 108612760), (16, 95036165), (20, 76028932), (28, 54306380), (35, 43445104), (37, 41096720), (40, 38014466), (56, 27153190), (70, 21722552), (74, 20548360), (80, 19007233), (112, 13576595), (140, 10861276), (148, 10274180), (185, 8219344), (259, 5870960), (280, 5430638), (296, 5137090), (370, 4109672), (518, 2935480), (560, 2715319), (592, 2568545), (740, 2054836), (1036, 1467740), (1295, 1174192), (1480, 1027418), (2072, 733870), (2590, 587096), (2960, 513709), (4144, 366935), (5180, 293548), (10360, 146774), (20720, 73387)]