256531772

素因数分解:

$2^2\times 7^1\times {\mathrm{1811}}^1\times {\mathrm{5059}}^1$

素因数の和:6881

約数の個数: 24

約数和(自身を含む): 513448320

約数和(自身を除く): 256916548

約数列:

[1, 2, 4, 7, 14, 28, 1811, 3622, 5059, 7244, 10118, 12677, 20236, 25354, 35413, 50708, 70826, 141652, 9161849, 18323698, 36647396, 64132943, 128265886, 256531772]

約数ペア:

[(1, 256531772), (2, 128265886), (4, 64132943), (7, 36647396), (14, 18323698), (28, 9161849), (1811, 141652), (3622, 70826), (5059, 50708), (7244, 35413), (10118, 25354), (12677, 20236)]