1620722320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1117}}^1\times {\mathrm{2591}}^1$

素因数の和:3728

約数の個数: 80

約数和(自身を含む): 4312009728

約数和(自身を除く): 2691287408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1117, 2234, 2591, 4468, 5182, 5585, 7819, 8936, 10364, 11170, 12955, 15638, 17872, 18137, 20728, 22340, 25910, 31276, 36274, 39095, 41456, 44680, 51820, 62552, 72548, 78190, 89360, 90685, 103640, 125104, 145096, 156380, 181370, 207280, 290192, 312760, 362740, 625520, 725480, 1450960, 2894147, 5788294, 11576588, 14470735, 20259029, 23153176, 28941470, 40518058, 46306352, 57882940, 81036116, 101295145, 115765880, 162072232, 202590290, 231531760, 324144464, 405180580, 810361160, 1620722320]

約数ペア:

[(1, 1620722320), (2, 810361160), (4, 405180580), (5, 324144464), (7, 231531760), (8, 202590290), (10, 162072232), (14, 115765880), (16, 101295145), (20, 81036116), (28, 57882940), (35, 46306352), (40, 40518058), (56, 28941470), (70, 23153176), (80, 20259029), (112, 14470735), (140, 11576588), (280, 5788294), (560, 2894147), (1117, 1450960), (2234, 725480), (2591, 625520), (4468, 362740), (5182, 312760), (5585, 290192), (7819, 207280), (8936, 181370), (10364, 156380), (11170, 145096), (12955, 125104), (15638, 103640), (17872, 90685), (18137, 89360), (20728, 78190), (22340, 72548), (25910, 62552), (31276, 51820), (36274, 44680), (39095, 41456)]