19279780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2557}}^1$

素因数の和:2608

約数の個数: 48

約数和(自身を含む): 45123120

約数和(自身を除く): 25843340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2557, 3770, 5114, 7540, 10228, 12785, 25570, 33241, 51140, 66482, 74153, 132964, 148306, 166205, 296612, 332410, 370765, 664820, 741530, 963989, 1483060, 1927978, 3855956, 4819945, 9639890, 19279780]

約数ペア:

[(1, 19279780), (2, 9639890), (4, 4819945), (5, 3855956), (10, 1927978), (13, 1483060), (20, 963989), (26, 741530), (29, 664820), (52, 370765), (58, 332410), (65, 296612), (116, 166205), (130, 148306), (145, 132964), (260, 74153), (290, 66482), (377, 51140), (580, 33241), (754, 25570), (1508, 12785), (1885, 10228), (2557, 7540), (3770, 5114)]