420171520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10589}}^1$

素因数の和:10641

約数の個数: 72

約数和(自身を含む): 1039006080

約数和(自身を除く): 618834560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 10589, 19840, 21178, 39680, 42356, 52945, 84712, 105890, 169424, 211780, 328259, 338848, 423560, 656518, 677696, 847120, 1313036, 1355392, 1641295, 1694240, 2626072, 2710784, 3282590, 3388480, 5252144, 6565180, 6776960, 10504288, 13130360, 13553920, 21008576, 26260720, 42017152, 52521440, 84034304, 105042880, 210085760, 420171520]

約数ペア:

[(1, 420171520), (2, 210085760), (4, 105042880), (5, 84034304), (8, 52521440), (10, 42017152), (16, 26260720), (20, 21008576), (31, 13553920), (32, 13130360), (40, 10504288), (62, 6776960), (64, 6565180), (80, 5252144), (124, 3388480), (128, 3282590), (155, 2710784), (160, 2626072), (248, 1694240), (256, 1641295), (310, 1355392), (320, 1313036), (496, 847120), (620, 677696), (640, 656518), (992, 423560), (1240, 338848), (1280, 328259), (1984, 211780), (2480, 169424), (3968, 105890), (4960, 84712), (7936, 52945), (9920, 42356), (10589, 39680), (19840, 21178)]