77980940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{205213}}^1$

素因数の和:205241

約数の個数: 24

約数和(自身を含む): 172379760

約数和(自身を除く): 94398820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 205213, 410426, 820852, 1026065, 2052130, 3899047, 4104260, 7798094, 15596188, 19495235, 38990470, 77980940]

約数ペア:

[(1, 77980940), (2, 38990470), (4, 19495235), (5, 15596188), (10, 7798094), (19, 4104260), (20, 3899047), (38, 2052130), (76, 1026065), (95, 820852), (190, 410426), (380, 205213)]