256021906

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1\times {\mathrm{887}}^1$

素因数の和:1338

約数の個数: 32

約数和(自身を含む): 448830720

約数和(自身を除く): 192808814

約数列:

[1, 2, 7, 14, 53, 106, 371, 389, 742, 778, 887, 1774, 2723, 5446, 6209, 12418, 20617, 41234, 47011, 94022, 144319, 288638, 329077, 345043, 658154, 690086, 2415301, 4830602, 18287279, 36574558, 128010953, 256021906]

約数ペア:

[(1, 256021906), (2, 128010953), (7, 36574558), (14, 18287279), (53, 4830602), (106, 2415301), (371, 690086), (389, 658154), (742, 345043), (778, 329077), (887, 288638), (1774, 144319), (2723, 94022), (5446, 47011), (6209, 41234), (12418, 20617)]