171377540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{208997}}^1$

素因数の和:209047

約数の個数: 24

約数和(自身を含む): 368672472

約数和(自身を除く): 197294932

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 208997, 417994, 835988, 1044985, 2089970, 4179940, 8568877, 17137754, 34275508, 42844385, 85688770, 171377540]

約数ペア:

[(1, 171377540), (2, 85688770), (4, 42844385), (5, 34275508), (10, 17137754), (20, 8568877), (41, 4179940), (82, 2089970), (164, 1044985), (205, 835988), (410, 417994), (820, 208997)]