208609940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{135461}}^1$

素因数の和:135488

約数の個数: 48

約数和(自身を含む): 546182784

約数和(自身を除く): 337572844

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 135461, 270922, 541844, 677305, 948227, 1354610, 1490071, 1896454, 2709220, 2980142, 3792908, 4741135, 5960284, 7450355, 9482270, 10430497, 14900710, 18964540, 20860994, 29801420, 41721988, 52152485, 104304970, 208609940]

約数ペア:

[(1, 208609940), (2, 104304970), (4, 52152485), (5, 41721988), (7, 29801420), (10, 20860994), (11, 18964540), (14, 14900710), (20, 10430497), (22, 9482270), (28, 7450355), (35, 5960284), (44, 4741135), (55, 3792908), (70, 2980142), (77, 2709220), (110, 1896454), (140, 1490071), (154, 1354610), (220, 948227), (308, 677305), (385, 541844), (770, 270922), (1540, 135461)]