21922000

素因数分解:

$2^4\times 5^3\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 80

約数和(自身を含む): 54027792

約数和(自身を除く): 32105792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 113, 125, 194, 200, 226, 250, 388, 400, 452, 485, 500, 565, 776, 904, 970, 1000, 1130, 1552, 1808, 1940, 2000, 2260, 2425, 2825, 3880, 4520, 4850, 5650, 7760, 9040, 9700, 10961, 11300, 12125, 14125, 19400, 21922, 22600, 24250, 28250, 38800, 43844, 45200, 48500, 54805, 56500, 87688, 97000, 109610, 113000, 175376, 194000, 219220, 226000, 274025, 438440, 548050, 876880, 1096100, 1370125, 2192200, 2740250, 4384400, 5480500, 10961000, 21922000]

約数ペア:

[(1, 21922000), (2, 10961000), (4, 5480500), (5, 4384400), (8, 2740250), (10, 2192200), (16, 1370125), (20, 1096100), (25, 876880), (40, 548050), (50, 438440), (80, 274025), (97, 226000), (100, 219220), (113, 194000), (125, 175376), (194, 113000), (200, 109610), (226, 97000), (250, 87688), (388, 56500), (400, 54805), (452, 48500), (485, 45200), (500, 43844), (565, 38800), (776, 28250), (904, 24250), (970, 22600), (1000, 21922), (1130, 19400), (1552, 14125), (1808, 12125), (1940, 11300), (2000, 10961), (2260, 9700), (2425, 9040), (2825, 7760), (3880, 5650), (4520, 4850)]