205181456

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{2689}}^1$

素因数の和:2967

約数の個数: 40

約数和(自身を含む): 420285600

約数和(自身を除く): 215104144

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 251, 304, 502, 1004, 2008, 2689, 4016, 4769, 5378, 9538, 10756, 19076, 21512, 38152, 43024, 51091, 76304, 102182, 204364, 408728, 674939, 817456, 1349878, 2699756, 5399512, 10799024, 12823841, 25647682, 51295364, 102590728, 205181456]

約数ペア:

[(1, 205181456), (2, 102590728), (4, 51295364), (8, 25647682), (16, 12823841), (19, 10799024), (38, 5399512), (76, 2699756), (152, 1349878), (251, 817456), (304, 674939), (502, 408728), (1004, 204364), (2008, 102182), (2689, 76304), (4016, 51091), (4769, 43024), (5378, 38152), (9538, 21512), (10756, 19076)]