2000193920

素因数分解:

$2^7\times 5^1\times {\mathrm{317}}^1\times {\mathrm{9859}}^1$

素因数の和:10195

約数の個数: 64

約数和(自身を含む): 4797284400

約数和(自身を除く): 2797090480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 317, 320, 634, 640, 1268, 1585, 2536, 3170, 5072, 6340, 9859, 10144, 12680, 19718, 20288, 25360, 39436, 40576, 49295, 50720, 78872, 98590, 101440, 157744, 197180, 202880, 315488, 394360, 630976, 788720, 1261952, 1577440, 3125303, 3154880, 6250606, 6309760, 12501212, 15626515, 25002424, 31253030, 50004848, 62506060, 100009696, 125012120, 200019392, 250024240, 400038784, 500048480, 1000096960, 2000193920]

約数ペア:

[(1, 2000193920), (2, 1000096960), (4, 500048480), (5, 400038784), (8, 250024240), (10, 200019392), (16, 125012120), (20, 100009696), (32, 62506060), (40, 50004848), (64, 31253030), (80, 25002424), (128, 15626515), (160, 12501212), (317, 6309760), (320, 6250606), (634, 3154880), (640, 3125303), (1268, 1577440), (1585, 1261952), (2536, 788720), (3170, 630976), (5072, 394360), (6340, 315488), (9859, 202880), (10144, 197180), (12680, 157744), (19718, 101440), (20288, 98590), (25360, 78872), (39436, 50720), (40576, 49295)]