19004500

素因数分解:

$2^2\times 5^3\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:409

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 22928300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 191, 199, 250, 382, 398, 500, 764, 796, 955, 995, 1910, 1990, 3820, 3980, 4775, 4975, 9550, 9950, 19100, 19900, 23875, 24875, 38009, 47750, 49750, 76018, 95500, 99500, 152036, 190045, 380090, 760180, 950225, 1900450, 3800900, 4751125, 9502250, 19004500]

約数ペア:

[(1, 19004500), (2, 9502250), (4, 4751125), (5, 3800900), (10, 1900450), (20, 950225), (25, 760180), (50, 380090), (100, 190045), (125, 152036), (191, 99500), (199, 95500), (250, 76018), (382, 49750), (398, 47750), (500, 38009), (764, 24875), (796, 23875), (955, 19900), (995, 19100), (1910, 9950), (1990, 9550), (3820, 4975), (3980, 4775)]