20786620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35839}}^1$

素因数の和:35877

約数の個数: 24

約数和(自身を含む): 45158400

約数和(自身を除く): 24371780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35839, 71678, 143356, 179195, 358390, 716780, 1039331, 2078662, 4157324, 5196655, 10393310, 20786620]

約数ペア:

[(1, 20786620), (2, 10393310), (4, 5196655), (5, 4157324), (10, 2078662), (20, 1039331), (29, 716780), (58, 358390), (116, 179195), (145, 143356), (290, 71678), (580, 35839)]