21896800

素因数分解:

$2^5\times 5^2\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:392

約数の個数: 72

約数和(自身を含む): 54184032

約数和(自身を除く): 32287232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 101, 160, 200, 202, 271, 400, 404, 505, 542, 800, 808, 1010, 1084, 1355, 1616, 2020, 2168, 2525, 2710, 3232, 4040, 4336, 5050, 5420, 6775, 8080, 8672, 10100, 10840, 13550, 16160, 20200, 21680, 27100, 27371, 40400, 43360, 54200, 54742, 80800, 108400, 109484, 136855, 216800, 218968, 273710, 437936, 547420, 684275, 875872, 1094840, 1368550, 2189680, 2737100, 4379360, 5474200, 10948400, 21896800]

約数ペア:

[(1, 21896800), (2, 10948400), (4, 5474200), (5, 4379360), (8, 2737100), (10, 2189680), (16, 1368550), (20, 1094840), (25, 875872), (32, 684275), (40, 547420), (50, 437936), (80, 273710), (100, 218968), (101, 216800), (160, 136855), (200, 109484), (202, 108400), (271, 80800), (400, 54742), (404, 54200), (505, 43360), (542, 40400), (800, 27371), (808, 27100), (1010, 21680), (1084, 20200), (1355, 16160), (1616, 13550), (2020, 10840), (2168, 10100), (2525, 8672), (2710, 8080), (3232, 6775), (4040, 5420), (4336, 5050)]