20528035190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7349}}^1\times {\mathrm{21487}}^1$

素因数の和:28856

約数の個数: 32

約数和(自身を含む): 39800073600

約数和(自身を除く): 19272038410

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 7349, 14698, 21487, 36745, 42974, 73490, 95537, 107435, 191074, 214870, 279331, 477685, 558662, 955370, 1396655, 2793310, 157907963, 315815926, 789539815, 1579079630, 2052803519, 4105607038, 10264017595, 20528035190]

約数ペア:

[(1, 20528035190), (2, 10264017595), (5, 4105607038), (10, 2052803519), (13, 1579079630), (26, 789539815), (65, 315815926), (130, 157907963), (7349, 2793310), (14698, 1396655), (21487, 955370), (36745, 558662), (42974, 477685), (73490, 279331), (95537, 214870), (107435, 191074)]