204921900

素因数分解:

$2^2\times 3^7\times 5^2\times {\mathrm{937}}^1$

素因数の和:972

約数の個数: 144

約数和(自身を含む): 667630880

約数和(自身を除く): 462708980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 243, 270, 300, 324, 405, 450, 486, 540, 675, 729, 810, 900, 937, 972, 1215, 1350, 1458, 1620, 1874, 2025, 2187, 2430, 2700, 2811, 2916, 3645, 3748, 4050, 4374, 4685, 4860, 5622, 6075, 7290, 8100, 8433, 8748, 9370, 10935, 11244, 12150, 14055, 14580, 16866, 18225, 18740, 21870, 23425, 24300, 25299, 28110, 33732, 36450, 42165, 43740, 46850, 50598, 54675, 56220, 70275, 72900, 75897, 84330, 93700, 101196, 109350, 126495, 140550, 151794, 168660, 210825, 218700, 227691, 252990, 281100, 303588, 379485, 421650, 455382, 505980, 632475, 683073, 758970, 843300, 910764, 1138455, 1264950, 1366146, 1517940, 1897425, 2049219, 2276910, 2529900, 2732292, 3415365, 3794850, 4098438, 4553820, 5692275, 6830730, 7589700, 8196876, 10246095, 11384550, 13661460, 17076825, 20492190, 22769100, 34153650, 40984380, 51230475, 68307300, 102460950, 204921900]

約数ペア:

[(1, 204921900), (2, 102460950), (3, 68307300), (4, 51230475), (5, 40984380), (6, 34153650), (9, 22769100), (10, 20492190), (12, 17076825), (15, 13661460), (18, 11384550), (20, 10246095), (25, 8196876), (27, 7589700), (30, 6830730), (36, 5692275), (45, 4553820), (50, 4098438), (54, 3794850), (60, 3415365), (75, 2732292), (81, 2529900), (90, 2276910), (100, 2049219), (108, 1897425), (135, 1517940), (150, 1366146), (162, 1264950), (180, 1138455), (225, 910764), (243, 843300), (270, 758970), (300, 683073), (324, 632475), (405, 505980), (450, 455382), (486, 421650), (540, 379485), (675, 303588), (729, 281100), (810, 252990), (900, 227691), (937, 218700), (972, 210825), (1215, 168660), (1350, 151794), (1458, 140550), (1620, 126495), (1874, 109350), (2025, 101196), (2187, 93700), (2430, 84330), (2700, 75897), (2811, 72900), (2916, 70275), (3645, 56220), (3748, 54675), (4050, 50598), (4374, 46850), (4685, 43740), (4860, 42165), (5622, 36450), (6075, 33732), (7290, 28110), (8100, 25299), (8433, 24300), (8748, 23425), (9370, 21870), (10935, 18740), (11244, 18225), (12150, 16866), (14055, 14580)]