20790324400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{5711}}^1$

素因数の和:6227

約数の個数: 120

約数和(自身を含む): 52696627200

約数和(自身を除く): 31906302800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 479, 760, 950, 958, 1520, 1900, 1916, 2395, 3800, 3832, 4790, 5711, 7600, 7664, 9101, 9580, 11422, 11975, 18202, 19160, 22844, 23950, 28555, 36404, 38320, 45505, 45688, 47900, 57110, 72808, 91010, 91376, 95800, 108509, 114220, 142775, 145616, 182020, 191600, 217018, 227525, 228440, 285550, 364040, 434036, 455050, 456880, 542545, 571100, 728080, 868072, 910100, 1085090, 1142200, 1736144, 1820200, 2170180, 2284400, 2712725, 2735569, 3640400, 4340360, 5425450, 5471138, 8680720, 10850900, 10942276, 13677845, 21701800, 21884552, 27355690, 43403600, 43769104, 51975811, 54711380, 68389225, 103951622, 109422760, 136778450, 207903244, 218845520, 259879055, 273556900, 415806488, 519758110, 547113800, 831612976, 1039516220, 1094227600, 1299395275, 2079032440, 2598790550, 4158064880, 5197581100, 10395162200, 20790324400]

約数ペア:

[(1, 20790324400), (2, 10395162200), (4, 5197581100), (5, 4158064880), (8, 2598790550), (10, 2079032440), (16, 1299395275), (19, 1094227600), (20, 1039516220), (25, 831612976), (38, 547113800), (40, 519758110), (50, 415806488), (76, 273556900), (80, 259879055), (95, 218845520), (100, 207903244), (152, 136778450), (190, 109422760), (200, 103951622), (304, 68389225), (380, 54711380), (400, 51975811), (475, 43769104), (479, 43403600), (760, 27355690), (950, 21884552), (958, 21701800), (1520, 13677845), (1900, 10942276), (1916, 10850900), (2395, 8680720), (3800, 5471138), (3832, 5425450), (4790, 4340360), (5711, 3640400), (7600, 2735569), (7664, 2712725), (9101, 2284400), (9580, 2170180), (11422, 1820200), (11975, 1736144), (18202, 1142200), (19160, 1085090), (22844, 910100), (23950, 868072), (28555, 728080), (36404, 571100), (38320, 542545), (45505, 456880), (45688, 455050), (47900, 434036), (57110, 364040), (72808, 285550), (91010, 228440), (91376, 227525), (95800, 217018), (108509, 191600), (114220, 182020), (142775, 145616)]