28820357.000000000

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{20047}}^1$

素因数の和:20085

約数の個数: 48

約数和(自身を含む): 272813184

約数和(自身を除く): 152851936

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 5984, 20047, 40094, 80188, 160376, 220517, 320752, 340799, 441034, 641504, 681598, 882068, 1363196, 1764136, 2726392, 3528272, 3748789, 5452784, 7056544, 7497578, 10905568, 14995156, 29990312, 59980624, 119961248]

約数ペア:

[(1, 119961248), (2, 59980624), (4, 29990312), (8, 14995156), (11, 10905568), (16, 7497578), (17, 7056544), (22, 5452784), (32, 3748789), (34, 3528272), (44, 2726392), (68, 1764136), (88, 1363196), (136, 882068), (176, 681598), (187, 641504), (272, 441034), (352, 340799), (374, 320752), (544, 220517), (748, 160376), (1496, 80188), (2992, 40094), (5984, 20047)]