20056784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1373}}^1$

素因数の和:1475

約数の個数: 40

約数和(自身を含む): 42934752

約数和(自身を除く): 22877968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 166, 176, 332, 664, 913, 1328, 1373, 1826, 2746, 3652, 5492, 7304, 10984, 14608, 15103, 21968, 30206, 60412, 113959, 120824, 227918, 241648, 455836, 911672, 1253549, 1823344, 2507098, 5014196, 10028392, 20056784]

約数ペア:

[(1, 20056784), (2, 10028392), (4, 5014196), (8, 2507098), (11, 1823344), (16, 1253549), (22, 911672), (44, 455836), (83, 241648), (88, 227918), (166, 120824), (176, 113959), (332, 60412), (664, 30206), (913, 21968), (1328, 15103), (1373, 14608), (1826, 10984), (2746, 7304), (3652, 5492)]