19964400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 64948224

約数和(自身を除く): 44983824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 127, 131, 150, 200, 240, 254, 262, 300, 381, 393, 400, 508, 524, 600, 635, 655, 762, 786, 1016, 1048, 1200, 1270, 1310, 1524, 1572, 1905, 1965, 2032, 2096, 2540, 2620, 3048, 3144, 3175, 3275, 3810, 3930, 5080, 5240, 6096, 6288, 6350, 6550, 7620, 7860, 9525, 9825, 10160, 10480, 12700, 13100, 15240, 15720, 16637, 19050, 19650, 25400, 26200, 30480, 31440, 33274, 38100, 39300, 49911, 50800, 52400, 66548, 76200, 78600, 83185, 99822, 133096, 152400, 157200, 166370, 199644, 249555, 266192, 332740, 399288, 415925, 499110, 665480, 798576, 831850, 998220, 1247775, 1330960, 1663700, 1996440, 2495550, 3327400, 3992880, 4991100, 6654800, 9982200, 19964400]

約数ペア:

[(1, 19964400), (2, 9982200), (3, 6654800), (4, 4991100), (5, 3992880), (6, 3327400), (8, 2495550), (10, 1996440), (12, 1663700), (15, 1330960), (16, 1247775), (20, 998220), (24, 831850), (25, 798576), (30, 665480), (40, 499110), (48, 415925), (50, 399288), (60, 332740), (75, 266192), (80, 249555), (100, 199644), (120, 166370), (127, 157200), (131, 152400), (150, 133096), (200, 99822), (240, 83185), (254, 78600), (262, 76200), (300, 66548), (381, 52400), (393, 50800), (400, 49911), (508, 39300), (524, 38100), (600, 33274), (635, 31440), (655, 30480), (762, 26200), (786, 25400), (1016, 19650), (1048, 19050), (1200, 16637), (1270, 15720), (1310, 15240), (1524, 13100), (1572, 12700), (1905, 10480), (1965, 10160), (2032, 9825), (2096, 9525), (2540, 7860), (2620, 7620), (3048, 6550), (3144, 6350), (3175, 6288), (3275, 6096), (3810, 5240), (3930, 5080)]