20683400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5443}}^1$

素因数の和:5478

約数の個数: 48

約数和(自身を含む): 50629200

約数和(自身を除く): 29945800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5443, 10886, 21772, 27215, 43544, 54430, 103417, 108860, 136075, 206834, 217720, 272150, 413668, 517085, 544300, 827336, 1034170, 1088600, 2068340, 2585425, 4136680, 5170850, 10341700, 20683400]

約数ペア:

[(1, 20683400), (2, 10341700), (4, 5170850), (5, 4136680), (8, 2585425), (10, 2068340), (19, 1088600), (20, 1034170), (25, 827336), (38, 544300), (40, 517085), (50, 413668), (76, 272150), (95, 217720), (100, 206834), (152, 136075), (190, 108860), (200, 103417), (380, 54430), (475, 43544), (760, 27215), (950, 21772), (1900, 10886), (3800, 5443)]