393888976

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 120

約数和(自身を含む): 882991104

約数和(自身を除く): 489102128

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 37, 52, 62, 74, 104, 124, 127, 148, 169, 208, 248, 254, 296, 338, 403, 481, 496, 508, 592, 676, 806, 962, 1016, 1147, 1352, 1612, 1651, 1924, 2032, 2294, 2704, 3224, 3302, 3848, 3937, 4588, 4699, 5239, 6253, 6448, 6604, 7696, 7874, 9176, 9398, 10478, 12506, 13208, 14911, 15748, 18352, 18796, 20956, 21463, 25012, 26416, 29822, 31496, 37592, 41912, 42926, 50024, 51181, 59644, 61087, 62992, 75184, 83824, 85852, 100048, 102362, 119288, 122174, 145669, 171704, 193843, 204724, 238576, 244348, 291338, 343408, 387686, 409448, 488696, 582676, 665353, 775372, 794131, 818896, 977392, 1165352, 1330706, 1550744, 1588262, 1893697, 2330704, 2661412, 3101488, 3176524, 3787394, 5322824, 6353048, 7574788, 10645648, 12706096, 15149576, 24618061, 30299152, 49236122, 98472244, 196944488, 393888976]

約数ペア:

[(1, 393888976), (2, 196944488), (4, 98472244), (8, 49236122), (13, 30299152), (16, 24618061), (26, 15149576), (31, 12706096), (37, 10645648), (52, 7574788), (62, 6353048), (74, 5322824), (104, 3787394), (124, 3176524), (127, 3101488), (148, 2661412), (169, 2330704), (208, 1893697), (248, 1588262), (254, 1550744), (296, 1330706), (338, 1165352), (403, 977392), (481, 818896), (496, 794131), (508, 775372), (592, 665353), (676, 582676), (806, 488696), (962, 409448), (1016, 387686), (1147, 343408), (1352, 291338), (1612, 244348), (1651, 238576), (1924, 204724), (2032, 193843), (2294, 171704), (2704, 145669), (3224, 122174), (3302, 119288), (3848, 102362), (3937, 100048), (4588, 85852), (4699, 83824), (5239, 75184), (6253, 62992), (6448, 61087), (6604, 59644), (7696, 51181), (7874, 50024), (9176, 42926), (9398, 41912), (10478, 37592), (12506, 31496), (13208, 29822), (14911, 26416), (15748, 25012), (18352, 21463), (18796, 20956)]