83891920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21401}}^1$

素因数の和:21428

約数の個数: 60

約数和(自身を含む): 226904004

約数和(自身を除く): 143012084

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21401, 42802, 85604, 107005, 149807, 171208, 214010, 299614, 342416, 428020, 599228, 749035, 856040, 1048649, 1198456, 1498070, 1712080, 2097298, 2396912, 2996140, 4194596, 5243245, 5992280, 8389192, 10486490, 11984560, 16778384, 20972980, 41945960, 83891920]

約数ペア:

[(1, 83891920), (2, 41945960), (4, 20972980), (5, 16778384), (7, 11984560), (8, 10486490), (10, 8389192), (14, 5992280), (16, 5243245), (20, 4194596), (28, 2996140), (35, 2396912), (40, 2097298), (49, 1712080), (56, 1498070), (70, 1198456), (80, 1048649), (98, 856040), (112, 749035), (140, 599228), (196, 428020), (245, 342416), (280, 299614), (392, 214010), (490, 171208), (560, 149807), (784, 107005), (980, 85604), (1960, 42802), (3920, 21401)]