1621000640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{723661}}^1$

素因数の和:723685

約数の個数: 56

約数和(自身を含む): 4411443552

約数和(自身を除く): 2790442912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 723661, 1447322, 2894644, 3618305, 5065627, 5789288, 7236610, 10131254, 11578576, 14473220, 20262508, 23157152, 25328135, 28946440, 40525016, 46314304, 50656270, 57892880, 81050032, 101312540, 115785760, 162100064, 202625080, 231571520, 324200128, 405250160, 810500320, 1621000640]

約数ペア:

[(1, 1621000640), (2, 810500320), (4, 405250160), (5, 324200128), (7, 231571520), (8, 202625080), (10, 162100064), (14, 115785760), (16, 101312540), (20, 81050032), (28, 57892880), (32, 50656270), (35, 46314304), (40, 40525016), (56, 28946440), (64, 25328135), (70, 23157152), (80, 20262508), (112, 14473220), (140, 11578576), (160, 10131254), (224, 7236610), (280, 5789288), (320, 5065627), (448, 3618305), (560, 2894644), (1120, 1447322), (2240, 723661)]