20502884

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 40506480

約数和(自身を除く): 20003596

約数列:

[1, 2, 4, 17, 29, 34, 37, 58, 68, 74, 116, 148, 281, 493, 562, 629, 986, 1073, 1124, 1258, 1972, 2146, 2516, 4292, 4777, 8149, 9554, 10397, 16298, 18241, 19108, 20794, 32596, 36482, 41588, 72964, 138533, 176749, 277066, 301513, 353498, 554132, 603026, 706996, 1206052, 5125721, 10251442, 20502884]

約数ペア:

[(1, 20502884), (2, 10251442), (4, 5125721), (17, 1206052), (29, 706996), (34, 603026), (37, 554132), (58, 353498), (68, 301513), (74, 277066), (116, 176749), (148, 138533), (281, 72964), (493, 41588), (562, 36482), (629, 32596), (986, 20794), (1073, 19108), (1124, 18241), (1258, 16298), (1972, 10397), (2146, 9554), (2516, 8149), (4292, 4777)]