20287250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{4271}}^1$

素因数の和:4307

約数の個数: 32

約数和(自身を含む): 39985920

約数和(自身を除く): 19698670

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 950, 2375, 4271, 4750, 8542, 21355, 42710, 81149, 106775, 162298, 213550, 405745, 533875, 811490, 1067750, 2028725, 4057450, 10143625, 20287250]

約数ペア:

[(1, 20287250), (2, 10143625), (5, 4057450), (10, 2028725), (19, 1067750), (25, 811490), (38, 533875), (50, 405745), (95, 213550), (125, 162298), (190, 106775), (250, 81149), (475, 42710), (950, 21355), (2375, 8542), (4271, 4750)]