20320638

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 46835712

約数和(自身を除く): 26515074

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 47, 69, 78, 94, 138, 141, 241, 282, 299, 482, 598, 611, 723, 897, 1081, 1222, 1446, 1794, 1833, 2162, 3133, 3243, 3666, 5543, 6266, 6486, 9399, 11086, 11327, 14053, 16629, 18798, 22654, 28106, 33258, 33981, 42159, 67962, 72059, 84318, 144118, 147251, 216177, 260521, 294502, 432354, 441753, 521042, 781563, 883506, 1563126, 3386773, 6773546, 10160319, 20320638]

約数ペア:

[(1, 20320638), (2, 10160319), (3, 6773546), (6, 3386773), (13, 1563126), (23, 883506), (26, 781563), (39, 521042), (46, 441753), (47, 432354), (69, 294502), (78, 260521), (94, 216177), (138, 147251), (141, 144118), (241, 84318), (282, 72059), (299, 67962), (482, 42159), (598, 33981), (611, 33258), (723, 28106), (897, 22654), (1081, 18798), (1222, 16629), (1446, 14053), (1794, 11327), (1833, 11086), (2162, 9399), (3133, 6486), (3243, 6266), (3666, 5543)]