20796800

素因数分解:

$2^7\times 5^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 52678920

約数和(自身を除く): 31882120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 67, 80, 97, 100, 128, 134, 160, 194, 200, 268, 320, 335, 388, 400, 485, 536, 640, 670, 776, 800, 970, 1072, 1340, 1552, 1600, 1675, 1940, 2144, 2425, 2680, 3104, 3200, 3350, 3880, 4288, 4850, 5360, 6208, 6499, 6700, 7760, 8576, 9700, 10720, 12416, 12998, 13400, 15520, 19400, 21440, 25996, 26800, 31040, 32495, 38800, 42880, 51992, 53600, 62080, 64990, 77600, 103984, 107200, 129980, 155200, 162475, 207968, 214400, 259960, 310400, 324950, 415936, 519920, 649900, 831872, 1039840, 1299800, 2079680, 2599600, 4159360, 5199200, 10398400, 20796800]

約数ペア:

[(1, 20796800), (2, 10398400), (4, 5199200), (5, 4159360), (8, 2599600), (10, 2079680), (16, 1299800), (20, 1039840), (25, 831872), (32, 649900), (40, 519920), (50, 415936), (64, 324950), (67, 310400), (80, 259960), (97, 214400), (100, 207968), (128, 162475), (134, 155200), (160, 129980), (194, 107200), (200, 103984), (268, 77600), (320, 64990), (335, 62080), (388, 53600), (400, 51992), (485, 42880), (536, 38800), (640, 32495), (670, 31040), (776, 26800), (800, 25996), (970, 21440), (1072, 19400), (1340, 15520), (1552, 13400), (1600, 12998), (1675, 12416), (1940, 10720), (2144, 9700), (2425, 8576), (2680, 7760), (3104, 6700), (3200, 6499), (3350, 6208), (3880, 5360), (4288, 4850)]