1378810880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1367}}^1$

素因数の和:1589

約数の個数: 88

約数和(自身を含む): 3326751648

約数和(自身を除く): 1947940768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 512, 640, 788, 985, 1024, 1280, 1367, 1576, 1970, 2560, 2734, 3152, 3940, 5120, 5468, 6304, 6835, 7880, 10936, 12608, 13670, 15760, 21872, 25216, 27340, 31520, 43744, 50432, 54680, 63040, 87488, 100864, 109360, 126080, 174976, 201728, 218720, 252160, 269299, 349952, 437440, 504320, 538598, 699904, 874880, 1008640, 1077196, 1346495, 1399808, 1749760, 2154392, 2692990, 3499520, 4308784, 5385980, 6999040, 8617568, 10771960, 17235136, 21543920, 34470272, 43087840, 68940544, 86175680, 137881088, 172351360, 275762176, 344702720, 689405440, 1378810880]

約数ペア:

[(1, 1378810880), (2, 689405440), (4, 344702720), (5, 275762176), (8, 172351360), (10, 137881088), (16, 86175680), (20, 68940544), (32, 43087840), (40, 34470272), (64, 21543920), (80, 17235136), (128, 10771960), (160, 8617568), (197, 6999040), (256, 5385980), (320, 4308784), (394, 3499520), (512, 2692990), (640, 2154392), (788, 1749760), (985, 1399808), (1024, 1346495), (1280, 1077196), (1367, 1008640), (1576, 874880), (1970, 699904), (2560, 538598), (2734, 504320), (3152, 437440), (3940, 349952), (5120, 269299), (5468, 252160), (6304, 218720), (6835, 201728), (7880, 174976), (10936, 126080), (12608, 109360), (13670, 100864), (15760, 87488), (21872, 63040), (25216, 54680), (27340, 50432), (31520, 43744)]