2005339100

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{1621}}^1$

素因数の和:1863

約数の個数: 72

約数和(自身を含む): 4434872400

約数和(自身を除く): 2429533300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 139, 178, 278, 356, 445, 556, 695, 890, 1390, 1621, 1780, 2225, 2780, 3242, 3475, 4450, 6484, 6950, 8105, 8900, 12371, 13900, 16210, 24742, 32420, 40525, 49484, 61855, 81050, 123710, 144269, 162100, 225319, 247420, 288538, 309275, 450638, 577076, 618550, 721345, 901276, 1126595, 1237100, 1442690, 2253190, 2885380, 3606725, 4506380, 5632975, 7213450, 11265950, 14426900, 20053391, 22531900, 40106782, 80213564, 100266955, 200533910, 401067820, 501334775, 1002669550, 2005339100]

約数ペア:

[(1, 2005339100), (2, 1002669550), (4, 501334775), (5, 401067820), (10, 200533910), (20, 100266955), (25, 80213564), (50, 40106782), (89, 22531900), (100, 20053391), (139, 14426900), (178, 11265950), (278, 7213450), (356, 5632975), (445, 4506380), (556, 3606725), (695, 2885380), (890, 2253190), (1390, 1442690), (1621, 1237100), (1780, 1126595), (2225, 901276), (2780, 721345), (3242, 618550), (3475, 577076), (4450, 450638), (6484, 309275), (6950, 288538), (8105, 247420), (8900, 225319), (12371, 162100), (13900, 144269), (16210, 123710), (24742, 81050), (32420, 61855), (40525, 49484)]