20489412

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1217}}^1$

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 50746752

約数和(自身を除く): 30257340

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 61, 69, 92, 122, 138, 183, 244, 276, 366, 732, 1217, 1403, 2434, 2806, 3651, 4209, 4868, 5612, 7302, 8418, 14604, 16836, 27991, 55982, 74237, 83973, 111964, 148474, 167946, 222711, 296948, 335892, 445422, 890844, 1707451, 3414902, 5122353, 6829804, 10244706, 20489412]

約数ペア:

[(1, 20489412), (2, 10244706), (3, 6829804), (4, 5122353), (6, 3414902), (12, 1707451), (23, 890844), (46, 445422), (61, 335892), (69, 296948), (92, 222711), (122, 167946), (138, 148474), (183, 111964), (244, 83973), (276, 74237), (366, 55982), (732, 27991), (1217, 16836), (1403, 14604), (2434, 8418), (2806, 7302), (3651, 5612), (4209, 4868)]