21079600

素因数分解:

$2^4\times 5^2\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:518

約数の個数: 60

約数和(自身を含む): 51125200

約数和(自身を除く): 30045600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 151, 200, 302, 349, 400, 604, 698, 755, 1208, 1396, 1510, 1745, 2416, 2792, 3020, 3490, 3775, 5584, 6040, 6980, 7550, 8725, 12080, 13960, 15100, 17450, 27920, 30200, 34900, 52699, 60400, 69800, 105398, 139600, 210796, 263495, 421592, 526990, 843184, 1053980, 1317475, 2107960, 2634950, 4215920, 5269900, 10539800, 21079600]

約数ペア:

[(1, 21079600), (2, 10539800), (4, 5269900), (5, 4215920), (8, 2634950), (10, 2107960), (16, 1317475), (20, 1053980), (25, 843184), (40, 526990), (50, 421592), (80, 263495), (100, 210796), (151, 139600), (200, 105398), (302, 69800), (349, 60400), (400, 52699), (604, 34900), (698, 30200), (755, 27920), (1208, 17450), (1396, 15100), (1510, 13960), (1745, 12080), (2416, 8725), (2792, 7550), (3020, 6980), (3490, 6040), (3775, 5584)]