20315856

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 57942720

約数和(自身を除く): 37626864

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 109, 132, 176, 218, 264, 327, 353, 436, 528, 654, 706, 872, 1059, 1199, 1308, 1412, 1744, 2118, 2398, 2616, 2824, 3597, 3883, 4236, 4796, 5232, 5648, 7194, 7766, 8472, 9592, 11649, 14388, 15532, 16944, 19184, 23298, 28776, 31064, 38477, 46596, 57552, 62128, 76954, 93192, 115431, 153908, 186384, 230862, 307816, 423247, 461724, 615632, 846494, 923448, 1269741, 1692988, 1846896, 2539482, 3385976, 5078964, 6771952, 10157928, 20315856]

約数ペア:

[(1, 20315856), (2, 10157928), (3, 6771952), (4, 5078964), (6, 3385976), (8, 2539482), (11, 1846896), (12, 1692988), (16, 1269741), (22, 923448), (24, 846494), (33, 615632), (44, 461724), (48, 423247), (66, 307816), (88, 230862), (109, 186384), (132, 153908), (176, 115431), (218, 93192), (264, 76954), (327, 62128), (353, 57552), (436, 46596), (528, 38477), (654, 31064), (706, 28776), (872, 23298), (1059, 19184), (1199, 16944), (1308, 15532), (1412, 14388), (1744, 11649), (2118, 9592), (2398, 8472), (2616, 7766), (2824, 7194), (3597, 5648), (3883, 5232), (4236, 4796)]