21818600

素因数分解:

$2^3\times 5^2\times {\mathrm{127}}^1\times {\mathrm{859}}^1$

素因数の和:1002

約数の個数: 48

約数和(自身を含む): 51187200

約数和(自身を除く): 29368600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 127, 200, 254, 508, 635, 859, 1016, 1270, 1718, 2540, 3175, 3436, 4295, 5080, 6350, 6872, 8590, 12700, 17180, 21475, 25400, 34360, 42950, 85900, 109093, 171800, 218186, 436372, 545465, 872744, 1090930, 2181860, 2727325, 4363720, 5454650, 10909300, 21818600]

約数ペア:

[(1, 21818600), (2, 10909300), (4, 5454650), (5, 4363720), (8, 2727325), (10, 2181860), (20, 1090930), (25, 872744), (40, 545465), (50, 436372), (100, 218186), (127, 171800), (200, 109093), (254, 85900), (508, 42950), (635, 34360), (859, 25400), (1016, 21475), (1270, 17180), (1718, 12700), (2540, 8590), (3175, 6872), (3436, 6350), (4295, 5080)]