126251720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{450899}}^1$

素因数の和:450917

約数の個数: 32

約数和(自身を含む): 324648000

約数和(自身を除く): 198396280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 450899, 901798, 1803596, 2254495, 3156293, 3607192, 4508990, 6312586, 9017980, 12625172, 15781465, 18035960, 25250344, 31562930, 63125860, 126251720]

約数ペア:

[(1, 126251720), (2, 63125860), (4, 31562930), (5, 25250344), (7, 18035960), (8, 15781465), (10, 12625172), (14, 9017980), (20, 6312586), (28, 4508990), (35, 3607192), (40, 3156293), (56, 2254495), (70, 1803596), (140, 901798), (280, 450899)]